Liverpool boss Jurgen Klopp concedes he had concerns about Naby Keita's disciplinary record at RB Leipzig.

Keita's final year in Germany was marred by dismissals against Borussia Monchengladbach, Bayern Munich and Mainz having already agreed a deal in advance to move to Anfield. He was also sent off in a World Cup qualifier against Tunisia in October.

Klopp confirmed: "We watched them again, it was just a millisecond late here, too excited there. Young players do that.

"It was not that he was overly harsh in his challenges, just that he was too ready to win it.

"Last year was normal with a few highlights and a few unlucky red cards."