|Born||Dennis D. Siver
January 13, 1979
Omsk, Russian SFSR, Soviet Union
|Other names||The Menace|
|Height||5 ft 7 in (170 cm)|
|Weight||145 lb (66 kg; 10 st 5 lb)|
|Division||Featherweight (145 lb)
Lightweight (155 lb) Welterweight (170)
|Reach||70.0 in (178 cm)|
|Fighting out of||Mannheim, Germany|
Black Belt in |
Purple Belt in Brazilian jiu-jitsu
Green Belt in Judo
|Mixed martial arts record|
|Mixed martial arts record from Sherdog|
Dennis D. Siver (born January 13, 1979) is a Russian-German mixed martial artist who competes in the Featherweight division of the Ultimate Fighting Championship. As of July 21, 2014, he is #10 in official UFC Featherweight rankings.
Siver was born in Omsk, Russia to a family of Russian citizens of German descent. Siver began training in sambo and judo when he was 15 years old and at the age of 17, he moved to Germany where he continued his training with Tae Kwon Do and kickboxing. Same year, he became the WAKO Amateur Kickboxing Champion of Germany.
Mixed martial arts career
Siver's mixed martial arts career began in small local shows in Russia and England, amongst other European countries. He fought most frequently for Cage Warriors in England, compiling a 3-1, most notably, one win coming against Jim Wallhead.
Ultimate Fighting Championship
After his win against Jim Wallhead at CWFC – Enter The Rough House, Siver was signed by UFC. His debut was against Jess Liaudin at UFC 70 in Manchester, England where he lost via submission (armbar), just 81 seconds into the first round.
Siver was able to bounce back though at UFC 75, again in England. He defeated Naoyuki Kotani via KO (punch) in the second round. This was followed up by a loss to undefeated Gray Maynard at UFC Fight Night 12, via unanimous decision (29–28, 29–28, 30–27).
Siver was released by the UFC soon after, having compiled a 1–3 UFC record.
Siver had his first post-UFC fight at Tempel: Mix Fight Gala VII against Chas Jacquier. Siver won the fight via submission (guillotine choke) at 4.21 of the first round
Return to Ultimate Fighting Championship
This win earned Siver a second shot in UFC. He faced off against Nate Mohr at UFC 93 in Dublin, Ireland. In the third round, Siver was able to TKO his opponent via a spinning back kick and punches. This victory was also awarded the Knockout of the Night award.
His second fight was against Dale Hartt at UFC 99, which was the first UFC event held in Siver's home country of Germany. Siver won the fight via submission (rear naked choke) after 3 minutes of the first round.
Siver then fought Paul Kelly at UFC 105 in Manchester, England and in the same fashion as his victory over Mohr, was able to TKO his opponent via spinning back kick and punches. Once again, the win earned Siver the Knockout of the Night.
Siver faced George Sotiropoulos on February 27, 2011 at UFC 127. Siver won the bout via unanimous decision, handing Sotiropoulos his first loss in the UFC. Siver showed excellent takedown defence throughout the fight and took Sotiropoulos apart on the feet, dropping him twice in the first round, to pull off the upset.
Siver defeated Matt Wiman on July 2, 2011 at UFC 132 in a very close contest, with all three judges scoring the fight 29-28 in Siver's favor. Siver stated at the post-fight press conference that while the decision was close, that he wouldn't go back and score the fight any differently.
Siver was expected to face Sam Stout on October 29, 2011 at UFC 137. However, it was announced on August 29 that Stout had withdrawn from the bout and was replaced by Donald Cerrone. Siver lost by submission in the first round.
Siver was briefly linked to a rematch with Ross Pearson on April 14, 2012 at UFC on Fuel TV: Gustafsson vs. Silva. However, Siver instead faced Diego Nunes at the event, fighting as a featherweight for the first time in 28 career bouts. He won the fight via unanimous decision.
Siver was expected to face Eddie Yagin on September 1, 2012 at UFC 151. However, after UFC 151 was cancelled, Siver/Yagin was rescheduled for December 8, 2012 at UFC on Fox 5. It was then announced that Yagin had been forced out of the bout due to a sparring injury that landed him in the hospital with swelling around his brain, and was replaced by Nam Phan. He won the fight via unanimous decision.
The bout with Cub Swanson was rescheduled for July 6, 2013 at UFC 162. After a back and forth first two rounds, Swanson defeated Siver via third round TKO. The performance earned both participants Fight of the Night honors.
Siver faced Manvel Gamburyan on December 28, 2013 at UFC 168. He won the fight via unanimous decision. However Siver's initial urine sample came back with inconclusive results, which caused the NSAC to test an alternate sample. On March 15, it was announced that Siver had failed his UFC 168 drug test following the testing of second sample came back positive for hCG. As a result Siver has been suspended by the NSAC and his win over Gamburyan was changed to "No Contest".
Siver was expected to face Robert Whiteford on October 4, 2014 at UFC Fight Night 53. However, Whiteford pulled out of the bout in mid-September and was replaced by promotional newcomer Taylor Lapilus. There was some controversy over the replacement, and the SMMAF subsequently deemed Lapilus an unsuitable opponent, drafting in American Charles Rosa for the matchup. 
Championships and accomplishments
- World Association of Kickboxing Organizations
- WAKO Amateur German Championship (1997)
Mixed martial arts
- Ultimate Fighting Championship
Mixed martial arts record
|Professional record breakdown|
|31 matches||21 wins||9 losses|
|Charles Rosa||UFC Fight Night: Nelson vs. Story||October 4, 2014||Stockholm, Sweden|
|NC||21–9 (1)||Manny Gamburyan||NC (overturned win)||UFC 168||December 28, 2013||3||5:00||Las Vegas, Nevada, United States||Originally a unanimous decision victory; Siver tested positive for hCG.|
|Loss||21–9||Cub Swanson||TKO (punches)||UFC 162||July 6, 2013||3||2:24||Las Vegas, Nevada, United States||Fight of the Night.|
|Win||21–8||Nam Phan||Decision (unanimous)||UFC on Fox: Henderson vs. Diaz||December 8, 2012||3||5:00||Seattle, Washington, United States|
|Win||20–8||Diego Nunes||Decision (unanimous)||UFC on Fuel TV: Gustafsson vs. Silva||April 14, 2012||3||5:00||Stockholm, Sweden||Featherweight debut.|
|Loss||19–8||Donald Cerrone||Submission (rear-naked choke)||UFC 137||October 29, 2011||1||2:22||Las Vegas, Nevada, United States|
|Win||19–7||Matt Wiman||Decision (unanimous)||UFC 132||July 2, 2011||3||5:00||Las Vegas, Nevada, United States|
|Win||18–7||George Sotiropoulos||Decision (unanimous)||UFC 127||February 27, 2011||3||5:00||Sydney, Australia|
|Win||17–7||Andre Winner||Submission (rear-naked choke)||UFC 122||November 13, 2010||1||3:37||Oberhausen, Germany||Submission of the Night.|
|Win||16–7||Spencer Fisher||Decision (unanimous)||The Ultimate Fighter 11 Finale||June 19, 2010||3||5:00||Las Vegas, Nevada, United States|
|Loss||15–7||Ross Pearson||Decision (unanimous)||UFC Fight Night: Florian vs. Gomi||March 31, 2010||3||5:00||Charlotte, North Carolina, United States||Fight of the Night.|
|Win||15–6||Paul Kelly||TKO (spinning back kick & punches)||UFC 105||November 14, 2009||2||2:53||Manchester, England||Knockout of the Night.|
|Win||14–6||Dale Hartt||Submission (rear-naked choke)||UFC 99||June 13, 2009||1||3:23||Cologne, Germany|
|Win||13–6||Nate Mohr||TKO (spinning back kick & punches)||UFC 93||January 17, 2009||3||3:27||Dublin, Ireland||Knockout of the Night.|
|Win||12–6||Chas Jacquier||Submission (guillotine choke)||TFS: Mix Fight Gala VII||October 25, 2008||1||4:21||Darmstadt, Germany|
|Loss||11–6||Melvin Guillard||KO (punches)||UFC 86||July 5, 2008||1||0:36||Las Vegas, Nevada, United States|
|Loss||11–5||Gray Maynard||Decision (unanimous)||UFC Fight Night: Swick vs Burkman||January 23, 2008||3||5:00||Las Vegas, Nevada, United States|
|Win||11–4||Naoyuki Kotani||KO (punch)||UFC 75||September 8, 2007||2||2:04||London, England||Lightweight debut.|
|Loss||10–4||Jess Liaudin||Submission (armbar)||UFC 70||April 21, 2007||1||1:21||Manchester, England|
|Win||10–3||Jim Wallhead||Submission (armbar)||CWFC: Enter The Rough House||December 9, 2006||2||3:31||Nottingham, England|
|Win||9–3||Said Khalilov||Decision (split)||WFC 2: Evolution||September 30, 2006||3||5:00||Koper, Slovenia|
|Win||8–3||Paul Jenkins||Submission (heel hook)||WFC: Europe vs. Brazil||May 20, 2006||2||3:42||Koper, Slovenia|
|Loss||7–3||Daniel Weichel||Submission (rear-naked choke)||TFS: Mix Fight Gala III||May 6, 2006||1||N/A||Darmstadt, Germany|
|Loss||7–2||Arni Isaksson||Submission (armbar)||CWFC: Enter the Wolfslair||March 5, 2006||2||4:23||Liverpool, England||CWFC 170 lbs. Tournament Final.|
|Win||7–1||Adrian Degorski||Submission (armbar)||CWFC: Enter the Wolfslair||March 5, 2006||2||1:59||Liverpool, England|
|Win||6–1||Jonas Eriksson||TKO (punches)||CWFC: Enter the Wolfslair||March 5, 2006||1||0:35||Liverpool, England|
|Loss||5–1||Fabricio Nascimento||Submission (kimura)||EVT 5: Phoenix||October 8, 2005||1||0:47||Sweden|
|Win||5–0||Maciej Luczak||Submission (punches)||OC: Masters Fight Night 2||March 26, 2005||2||N/A||Germany|
|Win||4–0||Dylan van Kooten||Submission (choke)||BFS: Mix Fight Gala 4||March 6, 2005||1||N/A||Düsseldorf, Germany|
|Win||3–0||Kenneth Rosfort-Nees||TKO (doctor stoppage)||EVT 4: Gladiators||September 26, 2004||1||5:00||Stockholm, Sweden|
|Win||2–0||Mohamed Omar||Decision (unanimous)||Kombat Komplett||August 7, 2004||3||5:00||Trier, Germany|
|Win||1–0||Kordian Szukala||Submission (punches)||Outsider Cup 2||February 28, 2004||1||0:17||Lübbecke, Germany|
- "Dennis Siver on UFC 127, Evolving His Game, and Promoting MMA in Germany". mmanuts.com. Retrieved 2011-02-09.
- "Dennis Siver Home Page". dennis-siver.com. Retrieved 2011-06-29.
- UFC Fighter Rankings
- Official UFC profile
- "Exlcusive: Paul Kelly v Dennis Siver at UFC 105". Fighters Only. Retrieved 2009-08-20.
- "Pearson faces Siver". fightersonly.co.uk. Retrieved 2010-01-21.
- "Spencer Fisher vs Dennis Siver signed for Ultimate Fighter (TUF) 11 Finale on June 19". mmamania.com. Retrieved 2010-04-20.
- "Dennis Siver vs. Andre Winner Bout Planned for UFC 122". mmafighting.com. Archived from the original on 11 September 2010. Retrieved 2010-09-09.
- "George Sotiropoulos Gets His Wish, Faces Dennis Siver at UFC 127". MMAWeekly.com. Retrieved 2010-11-21.
- "UFC 132 Play-by-Play: Dennis Siver vs. Matt Wiman". MMAWeekly.com. Retrieved 2011-07-03.
- Conlan, Brendhan (July 16, 2011). "Sam Stout scrap with Dennis Siver in the works for UFC 137". fiveouncesofpain.com.
- Marrocco, Steven (August 29, 2011). "Sam Stout withdraws from UFC 137". MMAjunkie.com. Retrieved August 29, 2011.
- Okamoto, Brett (August 29, 2011). "Donald Cerrone replaces Sam Stout". ESPN.com. Retrieved August 29, 2011.
- "Ross Pearson vs. Dennis Siver rematch added to UFC on FUEL TV 2". mmajunkie.com. Retrieved January 11, 2012.
- "Diego Nunes vs. Dennis Siver added to UFC on FUEL TV 2". mmajunkie.com. January 24, 2012.
- Rimmer, Joe (June 5, 2012). "Dennis Siver vs. Eddie Yagin – UFC 151". thefightlounge.co.uk.
- Alexander, Mookie (August 30, 2012). "Dennis Siver Vs. Eddie Yagin Moved To UFC On FOX 5". bloodyelbow.com. Retrieved August 30, 2012.
- Ian Bain (2012-11-14). "Nam Phan replaces Eddie Yagin – fights Dennis Siver at UFC on FOX 5". mmaopinion.co.uk. Retrieved 2012-11-14.
- Staff (2012-12-12). "Cub Swanson vs. Dennis Siver Set as Co-Main Event for UFC on Fuel 7 in England". mmaweekly.com. Retrieved 2012-12-12.
- "Dustin Poirier replaces Dennis Siver, meets Cub Swanson at UFC on FUEL TV 7". mmajunkie.com. January 17, 2013.
- Tom Ngo (March 28, 2013). "Dennis Siver Faces Cub Swanson at UFC 162". 5throundcom. Retrieved March 28, 2013.
- Staff (September 25, 2013). "Dennis Siver vs. Manny Gamburyan added to UFC 168". mmajunkie.com. Retrieved September 25, 2013.
- Jamie Penick (March 6, 2014). "UFC 168 drug tests for Dennis Siver and Siyar Bahadurzada come back "inconclusive," NAC awaiting "B" sample results". mmatorch.com. Retrieved March 15, 2014.
- Staff (April 24, 2014). "UFC's Dennis Siver fined and suspended for failed drug test, win overturned". mmajunkie.com. Retrieved April 24, 2014.
- Staff (July 29, 2014). "Dennis Siver meets Robert Whiteford at UFC Fight Night 53 in Stockholm". mmajunkie.com. Retrieved July 29, 2014.
- Jason Floyd (September 24, 2014). "Taylor Lapilus replaces an injured Robert Whiteford, meets Dennis Siver at UFC Fight Night 53". themmareport.com. Retrieved September 24, 2014.
- @YourMMA (September 29, 2014). "SMMAF Deem Lapilus Unsuitable, Siver Gets Replacement For Stockholm". YourMMA.tv. Retrieved September 29, 2014.