The emergency loan window closes at 5pm tonight with Football League clubs looking to strengthen their squads ahead of the busy festive period.
Premier League clubs can use the loan system to ship out the deadwood and younger players to give them first team football.
But not to bring in new players.
Football League clubs can use the window to their advantage though, with clubs from the Championship, League One and League Two sniffing around top flight clubs looking to take their players on loan.
One rule that does also apply to Premier League clubs; should a side suffer a goalkeeping crisis, they ARE able to bring in replacements.
Sunderland have benefitted from this in the past. The deals usually last seven days but neither Sunderland or Newcastle need to take advantage of that currently.
Sunderland have fringe players that boss Sam Allardyce could look to move on.
We take a look at three players that could leave Wearside on temporary deals:
Surely today will be the day that Bridcutt leaves the Stadium of Light on loan.
The 26-year-old former Brighton & Hove Albion midfielder has caught the interest of Leeds United, Cardiff City and Reading.
Leeds United have spent the past month attempting to sign Bridcutt on loan, yet despite agreeing terms with all parties, the move appears to have died and the Championship outfit are running out of time to resurrect a deal ahead of today’s deadline.
Cardiff sent scouts to Sunderland Under-21s’ clash against Liverpool on Monday night.
Bridcutt played all 120 minutes in Sunderland’s extra-time defeat and showed some fight in the middle of the park.
Signed for £2million from Scottish giants Celtic in the summer, Matthews has failed to establish himself in the first team at Sunderland.
The Welshman is renowned as a pacy, attacking full-back but has struggled to get ahead of DeAndre Yedlin, Billy Jones and Patrick Van Aanholt in the club's pecking order.
Matthews featured against Liverpool for Sunderland's under-21 side.
He could be set for the loan exit door.
The Greek winger said recently that he doesn't regret joining the Black Cats, despite starting just two games in a red and white shirt.
But with first team opportunities severely limited, Mavrias looks set for the exit door.
He featured against Liverpool for Sunderland's Under-21 side, with a number of scouts in attendance.
The 21-year-old spent the second half of last season on loan at boyhood club Panathinaikos, before seeing hopes of a permanent move fall through in the summer.