The Manly rugby league coach Geoff Toovey says the club won't know the seriousness of Glenn Stewart's injury until he undergoes scans.
The New South Wales star's participation in Origin III is in major doubt after he injured his knee in the Sea Eagles' 26-22 loss to Melbourne at Brookvale on Monday night.
Stewart was carried from the field just before half-time in another nail-biting contest between the bitter rivals, his left knee twisting awkwardly under the weight of Storm utility Rory Kostjasyn.
The initial diagnosis was a strained medial ligament and a layoff of between two to four weeks - leaving him next to no chance to play the Origin decider in Brisbane on July the 4th.
