Gallinari's knee buckled inward as he drove to the basket for a layup in the first half. He gave up the ball, grabbed his knee and hopped to the sideline, where he sat down, writhing in pain as Darren Collison scored at the other end for Dallas.
Per ESPN also, MRI tests were conducted and it did not look good:
The team didn't have any immediate word on the extent of his injury, saying only that he was scheduled for an MRI on Friday. There are fears that Gallinari tore his anterior cruciate ligament.