|Date of birth||22 March 1986|
|Place of birth||Jablonec, Czechoslovakia|
|Height||1.91 m (6 ft 3 in)|
|Playing position||Centre Back|
|2003||Czech Republic U18||3||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 1 June 2014.
‡ National team caps and goals correct as of 12 March 2012
Krejčí made the big step of his career signing for Romanian giants FC Politehnica Timișoara on 15 October for five years. He was handed the number 3. At his presentation at press conference, said : "I am very happy to be here, is an important step in my career. Poli Timișoara is a well known name in the Czech Republic, thanks to Dušan Uhrin. I hope to help the team to back European Cups in the summer. Krejčí left the team on 18 June 2011 after he failed to make an impression and played just for reserves team.
- "Jiří Krejčí". liga1.ro. Retrieved 3 January 2010.
- "Krejčí signed for five years with romanian giants Poli". FC Timişoara. 15 October 2010.