Former England coach Fabio Capello believes Chelsea defender Kalidou Koulibaly is struggling to handle the pace of the Premier League.

Capello believes that the Senegal international just needs to adapt to the speed of English football after spending eight years in the Serie A.

Koulibaly featured 236 times for Napoli in the Italian top-flight, establishing himself as one of the league's leading defenders.

"I would like to talk about the difficulties of Koulibaly at Chelsea," Capello told Sky Calcio Club.

"In Naples, he was doing everything by himself. His problems now depend on the speed with which they play in England. It's the same pace used by Udinese to give Roma fits. It's something that must make us Italians reflect."