Manuel Neuer acknowledged that Bayern Munich must improve in defence if they are to stand a chance of progressing past Liverpool in the Champions League.
Neuer returned to Bayern's team on Friday, following a three-game absence due to a thumb injury, but conceded after just 13 seconds in the 3-2 Bundesliga win over Augsburg when Leon Goretzka deflected into his own net.
It was the fastest own goal in Bundesliga history, leaving the club with an early hill to climb.
Kingsley Coman – who went off injured late on – restored parity and the France winger again levelled when Augsburg went back ahead courtesy of Ji Dong-won.