Southampton have signed defender Ronnie Edwards from Peterborough United for a reported £3m on a four-year deal.
The 21-year-old played 45 times in League One last season, helping Peterborough win the EFL Trophy against Bristol City at Wembley and reach the play-offs.
Edwards captained England Under-20s and will play his first season in the Premier League after also featuring in the Championship for the Posh.
"I'm buzzing to be here. It's a massive club and I can’t wait to get started," Edwards said.
"Obviously from what happened last year they had an unbelievable season.