"Obviously it's a setback being without a player of his quality but it's also a big opportunity for Tui (Lolohea).
"He's already had a full game at fullback against the Knights and he played there for another 30 minutes on Saturday. He's a player with special ability and we have great confidence in him."
Tomkins, who turned 26 today, joins an injury list which still includes Sam Rapira (hamstring), Konrad Hurrell (knee) and Ngani Laumape (knee).