Celtics forward Gordon Hayward will undergo surgery on his fractured left hand in New York on Monday, according to ESPN's Adrian Wojnarowski.
Hayward's agent, Mark Bartelstein, told Wojnarowski that a timetable for his return will be determined after the procedure.
The 29-year-old forward injured his hand during Saturday's game against the Spurs. Late in the second quarter, Hayward collided with San Antonio forward LaMarcus Aldridge while trying to defend a Dejounte Murray drive. He left the game for X-rays and did not return.
The injury is potentially a big blow to both the team and Hayward personally.