Chelsea boss Graham Potter has backed Enzo Fernandez to be a success at Chelsea following his €121million move from Benfica amid claims from critics that the transfer is a gamble.

Potter said: “I can understand it [why people might call the signing a gamble], absolutely. Every transfer is a gamble.

“If you look at the market for midfield players – certainly midfield players that haven’t won the World Cup – you’ll be quoted a lot of money.

“We’ve got a player with a huge personality. He played in the midfield for Argentina that won the World Cup. He has attributes that can help him play in any league in the world. He has already played well in the Champions League.

“We followed him before the World Cup, we knew about him anyway. We’re confident on the personality. It’s like anything: he’s still a young person, he’s still a young man coming to this country.

“You’ve got to adapt to the club. But we’ll help him with that and his personality is one where you think ‘Oh, I’ve got no worries about him’.

“He’s a fighter. I think he understands how fortunate he is. He fights for the team. He’s got courage, he’s not afraid, he’s open-minded. He wants to play football, he wants to improve.

“If you’re playing as the No6 for Argentina and you’re playing the big games he’s played in at his age, and with the quality he’s shown, it’s not straightforward to have those attributes.”