|Full name||Alexander Merkel|
|Date of birth||22 February 1992|
|Place of birth||Almaty, Kazakhstan|
|Height||1.80 m (5 ft 11 in)|
|2012||→ Milan (loan)||1||(0)|
|2014||→ Watford (loan)||11||(1)|
|2014–2015||→ Grasshopper (loan)||6||(0)|
* Senior club appearances and goals counted for the domestic league only and correct as of 14 September 2015.
Born in Kazakhstan to parents of German ancestry, Merkel moved to Germany in 1998, aged 6. There he started playing football with amateur team JSG Westerwald, before joining VfB Stuttgart at the age of 11.
In 2008, at age 16, Merkel transferred to Italian side Milan. During his time in the club's youth system, he was a member of the under-20 side who won the Coppa Italia Primavera in 2010, 25 years after the team's last success in the competition.
Merkel received his first call-ups for the senior team during the 2009–10 campaign, but he was never fielded nor named on the bench. At the beginning of the following season, he took part in some pre-season games, putting up good performances. Merkel eventually made his first-team official debut on 8 December 2010, coming off the bench in a UEFA Champions League group stage game against Ajax, He also came off the bench against Tottenham on the 75th Minute for Boateng on 6 January 2011, he also made his league debut, figuring in the starting line-up for a match against Cagliari. Merkel went on to score his first professional goal on 20 January, as Milan pulled off a 3–0 win over Bari in the Coppa Italia round of 16. In total, he made ten appearances, six of which were in the league, throughout the season.
At the beginning of the 2011–12 season, Merkel joined Genoa in co-ownership with Milan, for €5 million, which, in turn, signed Stephan El Shaarawy in a same type of deal, for €10 million. Merkel made his official debut for the club in 4–3 win over Nocerina in third preliminary round of the Coppa Italia, on 20 August 2011. Merkel made his first assist of the season with a left-footed cross to Marco Rossi in the Juventus 2 – 2 Genoa match. On 17 January 2012 he returned to Milan on loan from Genoa. He made his official re-debut wearing Milan's red-black shirt on 18 January, winning 2–1 over Novara in the 16th round of the 2011–12 Coppa Italia. Genoa bought the remaining 50% of his rights for another €5 million on 23 May 2012 making him a full Genoa player, as well as El Shaarawy moved to Milan for another €10 million.
On 3 January 2013 50% registration rights of Merkel (€4M) and Masahudu Alhassan (€1.5M) were sold to Udinese Calcio for a total of €5.5 million, as part of Antonio Floro Flores's deal.  In June 2013 Udinese acquired them outright for another €1.78 million (€1.16M and €620,000).
Merkel made his debut from the start in a 1-0 defeat to Reading on 11 January 2014, but he was sent off in second half stoppage time after a lunge on Nick Blackman. Merkel scored his first goal for Watford in a 3-0 home win against Barnsley on 15 March 2014.
Merkel made his international debut for Germany U-15 in a 4–1 win against Switzerland and has since represented Germany at all levels of youth international football up to under-19. In a December 2010 interview, he stated that he "dreams" of going on to play for the senior team one day.
In another December 2010 interview he said that he is interested in representing Russia. Russian Football Union president Sergey Fursenko and Russia's coach Dick Advocaat both commented saying that he can't be called up as he does not actually possess Russian citizenship. Merkel noted that naturalization should not be a problem, considering that an American-born Jon Robert Holden played for the Russia national basketball team.
- As of 1 September 2015.
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- Peter Staunton (10 August 2010). "Scouting Report: Alexander Merkel – AC Milan". goal.com. Retrieved 13 December 2010.
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- "Il tabellino di Genoa-Nocerina". asgnocerina.it (in Italian) (Associazione Sportiva Giovanile Nocerina). 20 August 2011. Retrieved 30 August 2011.
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- "Relazione e Bilancio al 31 Dicembre 2012" (PDF) (in Italian). AC Milan. 26 June 2013. Retrieved 30 May 2015.
- Genoa CFC SpA bilancio (financial report and accounts) on 31 December 2013 (Italian), PDF purchased from Italian CCIAA (Italian)
- Полузащитник "Милана" Александр Меркель: Хочу сыграть в России на ЧМ-2018 (in Russian). Sovetsky Sport. 11 December 2010.
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- "Toll! Jungstar Merkel will für Löw spielen". express.de (in German) (Express). 14 February 2011. Retrieved 18 March 2011.
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- Profile at Assocalciatori.it (Italian)