Bulls coach Mick Potter has been dealt another massive injury blow after Jarrod Sammut was ruled out for the next eight weeks.
The half-back, who has impressed following his close-season arrival from Crusaders, ruptured the PCL (posterior cruciate ligament) in his knee during the victory at Widnes on Easter Monday.
Bulls Football manager Stuart Duffy said: "It's another blow to us just as we were looking at getting some players back.
"Jarrod has been tremendous for us and there is no doubt he will be a big loss for the next couple of months.
"He has a similar injury to that suffered by Manase Manuokafoa earlier in the year and the prognosis of eight weeks is the same."