Philadelphia 76ers guard Marco Belinelli (18) shoots over Boston Celtics forward Marcus Morris (13) during the first quarter of game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics forward Al Horford (42) dunks the ball as Philadelphia 76ers guard Ben Simmons (25) looks on during the second quarter of game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics guard Terry Rozier (12) and teammates react to a three point shot against the Philadelphia 76ers during the second quarter of game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics center Aron Baynes (46) blocks a shot by Philadelphia 76ers center Joel Embiid (21) during the second half of Celtics 117-101 win in game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics forward Al Horford (42) dunks the ball as Philadelphia 76ers guard Marco Belinelli (18) looks on during the second half of Celtics 117-101 win in game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics forward Jayson Tatum (0) drives between Philadelphia 76ers guard Ben Simmons (25) and guard JJ Redick (17) during the second half of Boston 117-101 win in game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics guard Terry Rozier (12) and forward Jayson Tatum (0) high five each other during the second half of Celtics 117-101 win over the Philadelphia 76ers in game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports

Boston Celtics owner Wyc Grosbeck (left) talks with New England Patriots owner Robert Kraft before game one of the second round of the 2018 NBA Playoffs between the Boston Celtics and the Philadelphia 76ers at TD Garden. Winslow Townson-USA TODAY Sports

Philadelphia 76ers guard Ben Simmons (25) controls the ball against Boston Celtics forward Al Horford (42) and forward Jayson Tatum (0) during the second half of Boston's 117-101 win in game one of the second round of the 2018 NBA Playoffs at TD Garden. Winslow Townson-USA TODAY Sports