Raiders SG Ball coach Peter Marrapodi believes star centre Bryce O'Sullivan can emulate his famous father and forge a career at five-eighth.

Bryce is the son of two-time Canberra premiership hero Chris, and has been a pivotal figure in the Raiders' under-18s side.

Canberra takes on the Sydney Roosters today in a preliminary final, with the winner to play either Balmain or Souths in next week's decider.

''Bryce has good footwork on him and a good football brain, so I'm sure he could play five-eighth if he wanted to,'' Marrapodi said.

''He's always said he prefers it in the outside backs but there's certainly no reason he couldn't [play five-eighth].

''He probably is more suited to the 'three', he likes to come in and out of games and look for opportunities rather than be up in the front line all the time.''

Marrapodi boasts a long association with the family, having been part of the O'Sullivan-coached West Belconnen side which went through the 1997 season undefeated.

''I have a chat with Chris after some of the games and he gives me some ideas, which is always appreciated,'' Marrapodi said.