Swansea defender Alfie Mawson has undergone successful knee surgery but the operation means he will not be part of England’s World Cup squad.

The centre-back has enjoyed a stellar season with Swansea, despite their relegation from the Premier League, as he was an ever-present at the heart of their defence, appearing in all 38 of their top-flight games.

The 24-year-old’s form saw him earn a call-up to Gareth Southgate’s England squad for the first time in March this year although he did not see any game time in the friendlies against the Netherlands and Italy.

The former Barnsley player was in contention to earn a place at the World Cup in Russia this summer but it is believed Southgate recently informed him he was unlikely to be included in the final 23-man squad.

Mawson therefore opted to go under the knife on Monday to give himself plenty of time to recover ahead of the new domestic season, as he is expected to be sidelined for 6-8 weeks.

Swansea will be hoping to have Mawson back fit and available for the start of the Championship season although he may not be at the Liberty Stadium for too long, as a number of Premier League clubs are believed to be interested in his services.

West Ham reportedly tried to sign Mawson during the January transfer window and they could be one of the clubs that look to reignite their interest over the coming months.