Dallas Mavericks guard Luka Doncic (77) shoots at the basket as Boston Celtics center Kristaps Porzingis (8) defends during the second half of Game 5 of the NBA basketball finals, Monday, June 17, 2024, in Boston. (AP Photo/Charles Krupa)

Confetti falls after the Boston Celtics defeated the Dallas Mavericks in Game 5 of the NBA basketball finals, Monday, June 17, 2024, in Boston. (AP Photo/Michael Dwyer)

Boston Celtics guard Jaylen Brown (7) looks to pass the ball as Dallas Mavericks center Dereck Lively II (2), guard Luka Doncic (77) and guard Kyrie Irving, right, defend during the second half of Game 5 of the NBA basketball finals, Monday, June 17, 2024, in Boston. (AP Photo/Charles Krupa)

Dallas Mavericks guard Kyrie Irving pauses on the court in front of Boston Celtics head coach Joe Mazzulla, left, during the first half of Game 5 of the NBA basketball finals, Monday, June 17, 2024, in Boston. (AP Photo/Charles Krupa)

Boston Celtics' Jrue Holiday, right, and Dallas Mavericks' Luka Doncic (77) battle for the ball during the first half of Game 5 of the NBA basketball finals, Monday, June 17, 2024, in Boston. (AP Photo/Michael Dwyer)

Dallas Mavericks guard Luka Doncic, top, and Boston Celtics guard Jrue Holiday, bottom, land on the parquet as they vie for the ball during the first half of Game 5 of the NBA basketball finals, Monday, June 17, 2024, in Boston. (AP Photo/Charles Krupa)

The Dallas Mavericks bench watches play during the second half of Game 5 of the NBA basketball finals against the Boston Celtics, Monday, June 17, 2024, in Boston. (AP Photo/Michael Dwyer)

Boston Celtics fans climb poles and celebrate following the Celtics victory over the Dallas Mavericks in Game 5 of the NBA basketball finals in Boston on Monday, June 17, 2024. (AP Photo/Josh Reynolds)