St George Illawarra are prepared to open their chequebook again, remaining in the hunt for the prized scalp of James Roberts despite adding centre Tim Lafai to their roster.

Parramatta are officially out of the running with Brisbane, South Sydney and the Dragons remaining in contention to sign Roberts who is expected to make a decision by Wednesday. Fairfax Media understands that the trio of clubs are yet to make a formal offer but have been told to present their best contract by the end of this weekend.

Looking for options: James Roberts' future remains uncertain but the Dragons are still in the hunt for his signature. Credit:Getty Images

While the Dragons looked to have completed their roster for 2016 with the signing of Lafai on Friday, they remain in contention to add Roberts after the former Titan met with St George Illawarra coach Paul McGregor on Wednesday. It is understood the Dragons reached out to Roberts' management assuring them that Lafai's arrival would have little impact on Roberts' prospects.

Roberts also met South Sydney coach Michael Maguire on Wednesday in a move which could result in the 22-year-old returning to the club where he played his first NRL game.