Sigsworth has the distinction of being the first Australian player to participate in three grand finals for three different teams, losing all three matches against the same team (the Eels), but was a member of the victorious Canterbury-Bankstown Bulldogs team in 1985 which was against the St George Dragons [REF].
Sigsworth spent one season with Balmain Tigers in 1987 before drawing the curtain on his Sydney first-grade career because of an in-operable knee injury.