Kyrie Irving's left knee bent back awkwardly as he tried to go up for a layup, and he had to be helped off the floor.

The Dallas Mavericks cannot afford any more injuries, let alone to a player as significant as Kyrie Irving, so they're going to have to hold their breath and hope that the knee injury that Irving suffered Monday night vs.

Kyrie Irving left the Dallas Mavericks’ game Monday against Sacramento with a left knee sprain. Irving was injured late in the first quarter, and the Mavs said he would not return. The veteran guard landed awkwardly after being fouled on a drive to the basket and immediately grabbed his leg,