Rangers’ Mark Warburton and ex-Sunderland boss Dick Advocaat lead the way.
The right-back will not have featured for the Championship side for over a month by the time Hull visit Elland Road on Saturday.
The Eagles will be hoping that the investment will be able to take the club to the next level.
Kieran Tierney has made eight appearances for Celtic so far this season.
Costel Pantilimon has been in fine form for Sunderland in recent weeks.
Aston Villa currently sit last place in the Premier League table.
Mike Williamson has been recalled from his loan spell at Wolverhampton Wanderers by Newcastle United.
Charlie Taylor returned to Leeds United's starting line-up at the weekend.
Daniel Sturridge made yet another return from injury in Sunday's 1-0 win over Swansea City.
The Glovers are in serious danger of suffering a third consecutive relegation.