|Full name||Yasen Petrov|
|Date of birth||23 June 1968|
|Place of birth||Plovdiv, Bulgaria|
|Height||1.83 m (6 ft 0 in)|
|Playing position||Attacking midfielder|
|1991||Pirin Gotse Delchev||14||(8)|
|1997||Wuhan Optics Valley||11||(3)|
|1999–2000||Alki Larnaca FC||12||(4)|
|2001||Tennis Borussia Berlin||10||(0)|
|2006–2007||Cherno More Varna|
|2012||Levski Sofia (caretaker)|
|2012–2013||Levski Sofia (youth academy director)|
|* Senior club appearances and goals counted for the domestic league only.
He has managed PFC Lokomotiv Sofia, PFC Botev Plovdiv, and PFC Cherno More Varna. His most famous achievement as a coach is his debut for Lokomotiv Plovdiv, beating his old team and eternal city rivals Botev Plovdiv with 4–0.
On 20 May 2010, Yasen Petrov was presented as a new head coach of Levski Sofia. He started great after a win in the Eternal Derby. Then after series of good matches, Levski qualified for UEFA Europa League after eliminating Dundalk F.C., Kalmar FF and AIK Fotboll. Levski was drawn in Group C, facing Gent, Lille and Sporting CP. At the end of the season, Levski Sofia finished 2nd and Petrov was released from the club.