Scott Mcdonald is a free agent after his contract expired with Motherwell.
The ex-Bhoys striker believes the Old Firm fixture is the perfect way to help his former side in their league run-in.
The summer signing from Hibernian has still not started for the club.
Tom Rogic has scored five goals in 17 appearances for Celtic this season.
Tom Rogic has opened up about his struggles at Celtic.
Celtic held Ajax to a 2-2 draw in Amsterdam in the Europa League this evening.
Rangers and Motherwell go head to head in the first leg of the play-off final with a place in the Scottish Premiership at stake.
Ex-Celtic striker Jan Vennegoor of Hesselink wants to see Rangers promoted back to the Scottish Premiership.
Richard Foster is looking for Rangers to take advantage of Motherwell's poor away record on Thursday night.
The Australian international has told Rangers not to take his new team lightly.