Sullivan was only 5 feet 7 inches, and it took him a while to find his niche in the NHL after getting released by the Toronto Maple Leafs.
The Chicago Blackhawks General Manager at the time, Bob Murray picked Sullivan up and his career was really off and running.
Sullivan was teamed up with Michael Nylander on a night in 1999 which was the last time a player wearing a Chicago Blackhawks jersey ever scored 4 goals. Nylander did the scoring, and Sullivan was doing the helping.
Sullivan played for 6 teams during his NHL career, but his longest stretch with any team was with the Chicago Blackhawks playing 370 games.