Reece Burke has joined Wigan on a season-long loan just over a week after signing a four-year deal at West Ham.
The 19-year-old is eager to gain more first-team football in the Sky Bet Championship after signing a new long-term contract to keep him at the London Stadium until 2020.
Burke spent last season on loan at Bradford City, where he earned the Player of the Year award at the club, but enjoyed a successful pre-season with the Hammers and started the first leg of their Europa League tie against Astra Giurgiu in Romania.
Wigan manager Gary Caldwell told the club's official website: "As soon as we were made aware of Reece's availability, we worked hard to get him here as we knew there was interest from a number of Championship clubs.
"He's about to turn 20 and the experience he has already is impressive, having played in the Premier League for West Ham and also his successful spell with Bradford last season.
"The fact West Ham have signed him up to a four-year-deal tells you how highly they rate him and we are pleased that they believe the best place for him to develop now is with us here at Wigan Athletic.
"He brings good quality on the ball, but most importantly he's a solid defender who can deal with big crowds and the league environment, as he proved at Bradford."
Burke, who is a self-confessed West Ham fan and has 11 senior appearances with the club, could make his debut for Wigan when they take on Sheffield Wednesday at Hillsborough on September 10.