As we wait for the latest deals to be confirmed, here's our rundown of the 17 biggest deals in the second-tier to look out for today, as Preston North End and their divisional rivals look to bring in some new signings before the window closes tonight.
9. Nathan Collins - Stoke City to Burnley/Arsenal
The Potters want to keep their teenage star until the summer, but could crumble if a lucrative late offer comes their way. Burnley are believed to have recently had an offer of around £4.5m turned down this month. Photo: Alex Davidson
10. Zak Jules - Walsall to Birmingham City/Cardiff
The 23-year-old has been linked with a host of Championship sides so far this month. Birmingham City and Cardiff are thought to be among the front-runners, while League One outfit Portsmouth aren't believed to be interested. Photo: ANNE-CHRISTINE POUJOULAT
11. Siriki Dembele - Peterborough to Nottingham Forest
Peterborough United's latest prospect set to go up for auction, the rapid winger could be snapped up this month. Competition will be fierce if Forest do want the a player, with Celtic, Sheffield United and Fulham also linked. Photo: Lewis Storey
12. Josh King - Bournemouth to Fulham
West Ham were firm favourites to sign the Norway international this month, but Fulham have emerged as contenders to seal a deadline day swoop. He's made just four league starts so far this season. Photo: Naomi Baker