We've taken a look at the players to have crossed the Old Firm divide and play for both Rangers and Celtic in their careers.
There are a total of 20 players who have graced both clubs, with five occurring in the post World War Two era.
The most recent player to do so is Kenny Miller, who had three stints at Rangers and one stint with Celtic.
Scottish goalkeeper Mark Brown was another recent player to cross the divide, making a total of 17 appearances between the two clubs in across six seasons.
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