Diarra began the 2001–02 season by making the bench in several of the team's league matches in August and September, but failing to make an appearance. In October 2001, he was dropped back down to the club's reserve team and appeared in four matches before earning promotion back to the senior team for its 2001 Intercontinental Cup showdown with Argentine club Boca Juniors. Diarra made the bench for the match, but did not feature as Bayern won the match courtesy of an extra time goal from Samuel Kuffour. The victory gave Diarra his first major honour of his career. Afterwards, he returned to the reserve team and later suffered an injury, which required a lengthy absence. Diarra rejoined the team in March 2002 under new manager Hermann Gerland and made nine more appearances. Following the season, Diarra was offered a new three-year contract with the club, but rejected it citing his limited playing time. Despite his disappointing stint with Bayern, which included failing to make an appearance with the club's senior team, in 2009, Diarra stated "I have very fond memories of my time in Bayern". Following Diarra's success at Bordeaux, Bayern's general manager Uli Hoeneß admitted that Diarra's rise to prominence as a footballer is "one of the seven wonders of the world". Hoeneß admitted that he was surprised by Diarra's resurgence stating "If somebody had told me [he would return for a UEFA Champions League game] five years ago and made a bet with me, I would have lost a fortune". Since Diarra departing the club in 2002, due to FIFA compensation laws, Bayern have recouped over €800,000 as a result of the player's future transfers.