 In 2000, in his final year with the club, Mullins emulated his father by surpassing the 100 try scoring mark in first grade rugby league.After his on-field altercation with his teammate Mark McLinden against Parramatta, where he abused and pushed his team-mate, Mullins was dropped from the squad by team coach and former teammate Mal Meninga, and fined $25,000 dollars.Following his sacking from the Raiders, Mullins signed with English Super League team Leeds Rhinos.