Los Angeles Clippers power forward Blake Griffin apologized on Wednesday for an incident that led to him punching an equipment manager and sustaining a broken right hand that will sideline him from four to six weeks.

The Clippers and the NBA are investigating the incident, which took place on Saturday outside a Toronto restaurant, just as a torn quadriceps that has sidelined Griffin for four weeks, was nearly healed.

The five-time NBA All-Star broke a bone in his right hand while punching a Clippers equipment manager. The Orange County Register reported the two had an argument in the restaurant and Griffin hit the manager several times once they were outside.