Geroy Simon's debut in green will have to wait at least a week.
The veteran slotback will miss the Saskatchewan Roughriders season opener against the Edmonton Eskimos on Saturday.
Simon left the Roughriders final preseason tuneup against the Calgary Stampeders with a undisclosed injury.
The 37-year-old was acquired from the BC Lions this off-season. Simon is the league's all-time leading receiver.