LA Clippers center Ivica Zubac is available to return to action for Saturday's home game against the Boston Celtics, sources told ESPN's Shams Charania. It will be a quick return for Zubac after sustaining a Grade 2 ankle sprain during a Dec. 20 Clippers win over the Los Angeles Lakers. Zubac fell to the court in a heap late in the first quarter and immediately hobbled to the locker room for evaluation.