"They got rid of a fantastic player but brought in another three or four fantastic players to replace him," Martin told The Mirror. "I know it sounds strange but I think that has made them a much stronger team. They were a great team with him and they are still a great team without him.
"But the difference is that instead of having three or four match winners, now they have nine or 10."
The Canaries welcome Arsenal to Carrow Road in the Premier League on Saturday evening.