Moses reveals who has been Chelsea best player in training

Barkley joined the 'Blues' from Everton for £15m in Janaury, but struggled with injuries during his first six months at the club.

However, his return to fitness saw him included in the starting lineup for Maurizio Sarri's first two games in charge of the club, something Moses feels was just reward for his impressive performances on the training pitch.

"Everyone has been good, everyone is working hard but I’d say Ross Barkley [has been the most impressive]," he revealed. 

"He had a big injury but he’s started the season really well and he’s working his socks off."

Clearly feeling he has a point to prove, Barkley also revealed that he has been doing extra homework in order to understand what former Napoli boss Sarri want from his players.

"I’ve watched clips (of Napoli) just to see the way they played, out of possession and in possession," he explained. 

"I’ve seen how they played last season, and against Manchester City last season in the Champions League.

"They were a really exciting team, one-twos all over the pitch, one and two-touch football. Goals from all around the pitch. 

"It was exciting football, and they were unfortunate not to win the league last season."

A 22-cap England international, Barkley will be hoping that the arrival of Sarri can help him resurrect his international career, having missed out on a place in England's World Cup squad in the summer.