Colwill is in England’s squad for their Euro 2024 qualifier against Ukraine in Wroclaw in Poland on Saturday and a friendly against Scotland to mark the 150th anniversary of football’s oldest international fixture in Glasgow on Sept 12.

Colwill enjoyed a successful season-long loan spell at Brighton before featuring for the England Under-21 side that became European champions.

He has since returned to Stamford Bridge, with the 20-year-old an ever-present under new Blues manager Mauricio Pochettino.

“It has been an amazing year,” Colwill told a news conference today as he praised Pochettino’s impact upon his career.

“I think the big thing for me was the first day I came in, him just putting an arm around me and showing me that he respects me as a person and also a player,” he said of the Argentinian.

“That allows me to work my hardest and want to play my best for him.

“Just working under him in general, I know I’m going to improve. I can guarantee that because he’s such a good manager and he will push me. He won’t let me have any off days and that’s what I need.

“Someone like me, if someone lets me go to sleep I might just have a good day or a bad day. But I need someone there to give me that kick up my bum and say ‘keep going’ and that’s what he does.”