Manchester United manager Louis van Gaal blamed a five-minute lapse in concentration for his side's 2-1 defeat at Swansea City in the Premier League on Sunday.
Protecting an unbeaten record, United took a 48th-minute lead through Juan Mata at the Liberty Stadium, only for goals in quick succession from Andre Ayew and Bafetimbi Gomis to give Swansea a third successive win over their opponents.