Nicky Law claimed Rangers were too big to turn down after choosing an Irn-Bru Second Division title challenge ahead of a move to the npower Championship.
Neil Lennon has been given a one-game suspended touchline ban and will be free to be in the dugout for Celtic's William Hill Scottish Cup final against Hibernian at Hampden Park on Sunday.
Former striker Pierre van Hooijdonk believes Celtic's season will be regarded as a disappointment if they fail to lift the William Hill Scottish Cup this weekend.