The Boston Celtics are sticking with Al Horford as their starting center for Game 3 of the Eastern Conference semifinals Saturday, even though Kristaps Porzingis is available to play. Porzingis has been fighting an illness and was limited in the Celtics' two losses to the New York Knicks in Boston.

Boston, Massachusetts, USA; Boston Celtics center Al Horford (42) returns up court against the New York Knicks in the fourth quarter during game two of the second rou

With Jayson Tatum guarding Karl-Anthony Towns, the Celtics have reduced the effectiveness of the Jalen Brunson-Towns pick-and-roll, which the Knicks ran just seven times in Game 3, according to Second Spectrum tracking.