The 16-year-old, who is the son of Latics youth-team coach Tony, moves to Stamford Bridge in a four-year deal, two of which will be a scholarship.

The precise terms of the deal have not been disclosed, but Oldham claim it involves Chelsea sending some of their young players on loan to Boundary Park.

"We may also have an opportunity of taking Danny on loan at some stage," said Latics chief executive Alan Hardy.

"He's joining a massive club with fantastic resources, which will help him develop his game.

"He has four years of security and time is now on his side to develop into an excellent player."