The Warriors are in for a nervous wait as club legend Roger Tuivasa-Sheck goes for scans on a knee injury in his final season at the NRL side.
Tuivasa-Sheck pulled up sore from a tackle on Hayden Buchanan against last-placed St George Illawarra on Saturday night.
The veteran outside back left the field 11 minutes into his first game back from a minor shoulder injury.
Tuivasa-Sheck was seen in a knee brace after the Warriors' 30-12 win, but said he felt optimistic about his chances of facing ladder-leading Penrith in next Sunday's blockbuster.
He was able to walk independently to the Warriors' team bus at Jubilee Stadium, but this would not necessarily preclude a serious knee injury.
Warriors teammate Tanah Boyd was similarly mobile after suffering a season-ending anterior cruciate ligament rupture in round 11.
