Leyton Orient have signed midfielder Dan Kemp from West Ham.
The 22-year-old has cut short a season-long loan with Blackpool to complete a permanent move to the League Two club.
Kemp is the O's opening signing of the transfer window and he joins on a two-and-a-half year deal.
"There's been a couple of windows where we've looked to take him on loan but it hasn't materialised," said manager Ross Embleton.
"He's a player we have been aware of a very long time. I'm over the moon to have secured someone of his quality."
Kemp, who has two goals from 15 appearances in all competitions for Blackpool this season, said: "I'm delighted to be here. It is a great club. I can't wait to get going.
"The manager is a massive part of me joining. His philosophy is exciting and his reputation of developing young players is something that attracted me."
