Nikolay Davydenko, then world number 4, was questioned under suspicion of match fixing after his unexpected second round loss to world number 87 Martín Vassallo Argüello, 2-6, 6-3, 2-1 by retirement. Online betting company Betfair reported its suspicions to the game's governing body, the Association of Tennis Professionals, after irregular betting patterns occurred. Betfair took the unprecedented step of voiding all bets on the match, with came to a sum of around £3.6m, ten times the usual amount for a match at this level. Argüello's odds to win the match also rocketed early in the second set, despite being in a losing position. Davydenko retired with a foot injury and called the trainer out towards the end of the second set.