TORONTO, Canada: Yet another injury scare for Chicago point guard Derrick Rose took much of the excitement out of the Bulls’ 100-93 NBA victory on Thursday (Friday in Manila) at Toronto. Rose, playing consecutive games for only the second time this season because of sprained ankles, scored 20 points. But he walked off with just under two minutes remaining in the fourth quarter after falling to the floor. He walked slowly to the bench after appearing to tweak his already sore left ankle. The Bulls said Rose injured his hamstring and would undergo an MRI exam on Friday.