Carlton Cole has played four games for Celtic since signing in October.
The forward has been heavily linked with a move to Norwich in January.
Emmanuel Adebayor has been without a club all season, but Crystal Palace are reportedly keen to sign him on a short-term deal.
The forward got two goals in Wednesday's 3-3 draw.
Newcastle United drew 3-3 with Manchester United in mid-week.
The twins joined Leeds earlier in the week.
Rangers agreed contract extensions with Jason Holt and Andy Halliday.
The Ecuadorean side have stated that no more players will be leaving the club this month,
Andy Carroll could miss up to two months' worth of action, after picking up an injury during West Ham United's 3-1 win over Bournemouth.
Michal Zyro has scored two goals in his first two appearances for Wolverhampton Wanderers.