Warrington Wolves half-back Chris Sandow is facing four weeks on the sidelines due to a hamstring injury.
After playing a key role in the opening three tries of the Wolves' 28-18 victory over Wigan Warriors last Friday, Sandow pulled up with a muscular problem and was replaced by Joe Westerman in the 26th minute.
A scan revealed a grade two hamstring tear and the Australian is now set to miss at least the next month.
"Positive meeting with the consultant last night, [Sandow is] back in for a review in four weeks' time," the club posted on their official Twitter account.
Warrington also lost Rhys Evans to an injury in the first half of the clash at the DW Stadium.
Evans sustained a popped bursa in his shoulder and the club stated he has been responding well to treatment.