Ross Barkley scored his first Chelsea goal in the 3-0 win at Southampton on Sunday.
Barkley’s all-round performance in the game was impressive with the midfielder also providing the assist for Eden Hazard’s opener.
Many fans have hailed his performance against Southampton as his best Chelsea performance but Chelsea boss Maurizio Sarri disagrees.
According to Sarri, Barkley’s best Chelsea performance was in the Carling Cup win against Liverpool.
Asked if Barkley’s performance against Southampton was his best Chelsea performance, Sarri said: “I think the best performance of Ross was in the Carabao Cup in Liverpool.
“Today he has played very well, but I am really happy with him.
“From the beginning he has improved day by day, week by week and match by match. So I am very happy with him and for him, for the goal, for the national team.
“I think he had a very serious injury in the previous season, but I think he is improving.”
Sarri also revealed Barkley has improved the tactical side of his game.
“I said to him from the first day that he has great quality, physical and technical quality,” Sarri added.
“But you have to improve from the tactical point of view, but now he has improved (tactically).”
Asked about Barkley’s potential, Sarri added: “I don’t know. But potentially he is a great player.
“He has quality, very important qualities in the physical and technically point of view, now he is improving in the tactical point of view.
“He will become a very important player in England and for the England national team.”