Question: SV Werder Bremen won its first ever German double, clinching both Bundesliga and the DFB-Pokal, Werder lost both Aílton and defensive senior talisman Mladen Krstajić to Schalke 04, Krstajić is a former Serbian footballer who played as a centre back, born on which date?

Related documents: [0]  [DOC] Mladen Krstajić (Serbian Cyrillic: Младен Крстајић; born 4 March 1974) is a former Serbian footballer who played as a centre back. He was known for his composure, leadership and defensive ability. He represented Serbia and Montenegro at the 2006 FIFA World Cup. [END] 
[1]  [DOC] SV Werder Bremen won its first ever German double, clinching both Bundesliga and the DFB-Pokal. Following a club record-breaking league season, Werder won the title six points clear of Bayern Munich, with Aílton hitting 28 goals, the most ever from a Werder Bremen player. The cup victory was clinched following a 3–2 win against Alemannia Aachen, with defensive midfielder Tim Borowski the unexpected hero, hitting Alemannia with a brace. The title successes were Thomas Schaaf's first in his managerial career. However, Werder lost both Aílton and defensive senior talisman Mladen Krstajić to Schalke 04, since both refused to sign new contracts with the club. [END]  
Answer: 4 March 1974
4 March 1974