Sling (IDW)

In the IDW continuity, Sling is the co-owner of the Intergalactic Wrestling Federation, and a commentator alongside Stump. He suggested that Raphael join Grappleganza as a wrestler, in exchange for Stump leaving with the Turtles afterwards. He was present when Hakk-R appeared during another bout, and remained on the Stump Asteroid while Stump departed.