The Tottenham Hotspur and Sheffield Wednesday players were teammates at Celtic.
The Sheffield Wednesday striker's last appearance was nine months ago.
Sheffield Wednesday’s Gary Hooper has been out of action for nine months.
Welcome to HITC Sport's round-up of post 1pm deadline day news from clubs including Celtic, Sheffield Wednesday, Norwich City and more.
Sheffield Wednesday duo Kieran Lee and Gary Hooper haven’t featured at all this year.
Leeds United's pursuit of a new striker is said to have encountered difficulty.
The now Sheffield Wednesday, Derby County and Sunderland players enjoyed successful spells at Celtic Park.
Celtic are reportedly keen on Peterborough United's Jack Marriott.
None of Gary Hooper, Kieran Lee or Kieren Westwood have featured under the new Sheffield Wednesday boss, Jos Luhukay.
A clear-out could be on the cards at Sheffield Wednesday - will these 12 players be involved?