Wigan are close to signing Aston Villa's Chris Herd on loan and Leeds' Jason Pearce permanently, Sky sources understand.
Arsene Wenger expects Arsenal to complete the signing of Villarreal defender Gabriel Paulista within the next 24 hours.
Peterborough have completed the signing of Wrexham defender Nat Knight-Percival on a two-year contract.
The 25-year-old departs the Blue Square Bet Premier play-off semi-finalists to link up with the London Road outfit on a free transfer.
He told PUTV: "I am really excited to be a Peterborough United player and I can't wait to test myself in the Championship.
"I spoke to (Wrexham team-mate) Dean Keates and he told me he had one of the best periods of his career at London Road.
"I can't wait to get started, I am really pleased to be here.
"It is a massive step up but I am really looking forward to it."