This is a blow to the Knicks, who are already without forwards Julius Randle and Bojan Bogdanovic due to injuries.
Jayson Tatum struggled from the field. For a Celtics team loaded with weapons, it didn't matter.
Celtics legend Paul Pierce notes the growth and maturity he's seen in Jayson Tatum this season.
Robinson had surgery on the ankle in December and missed 50 regular-season games.