Xavi suggested Robert Lewandowski was lacking motivation to win the Europa League during a conversation with Pepe Reina before Barcelona were dumped out of the competition by Manchester United last week, according to reports in Spain.
Barca suffered a 4-3 aggregate defeat in their play-off round tie against United, with the Premier League club coming from behind to win 2-1 in the second leg at Old Trafford having earned an opening 2-2 draw at the Nou Camp.
It proved a disappointing night for Xavi, whose side took the lead in Manchester when Lewandowski converted from the penalty spot after 18 minutes, only for United to turn the game on its head and progress to the last-16 thanks to goals from Fred and Antony.