The Boston Celtics leave the court after defeating the Dallas Mavericks in Game 1 of basketball's NBA Finals on Thursday, June 6, 2024, in Boston. (AP Photo/Michael Dwyer)
Boston Celtics center Kristaps Porzingis (8) shoots over Dallas Mavericks guard Luka Doncic (77) during the second half of Game 1 of basketball's NBA Finals on Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)
Boston Celtics' Jaylen Brown, left, and Jayson Tatum jump before Game 1 of the basketball team's NBA Finals against the Dallas Mavericks on Thursday, June 6, 2024, in Boston. (AP Photo/Michael Dwyer)
Boston Celtics center Kristaps Porzingis, right, blocks a shot by Dallas Mavericks forward Derrick Jones Jr. during the second half of Game 1 of basketball's NBA Finals on Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)
Boston Celtics' Kristaps Porzingis (8) blocks a shot by Dallas Mavericks' Maxi Kleber (42) during the first half of Game 1 of basketball's NBA Finals on Thursday, June 6, 2024, in Boston.(AP Photo/Michael Dwyer)
Boston Celtics center Kristaps Porzingis (8) celebrates a 3-pointer, near Dallas Mavericks center Daniel Gafford (21) during the first half of Game 1 of basketball's NBA Finals on Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)
Boston Celtics coach Joe Mazzulla calls to players during the first half of Game 1 of the basketball team's NBA Finals against the Dallas Mavericks, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)
Dallas Mavericks' Kyrie Irving, third from right, watches from the bench with teammates late in the second half of Game 1 of the basketball team's NBA Finals against the Boston Celtics on Thursday, June 6, 2024, in Boston. (AP Photo/Michael Dwyer)
Dallas Mavericks guard Kyrie Irving heads toward the bench during the first half of Game 1 of the basketball team's NBA Finals against the Boston Celtics, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)
Dallas Mavericks coach Jason Kidd argues a call during the first half of Game 1 of the basketball team's NBA Finals against the Boston Celtics, Thursday, June 6, 2024, in Boston. (AP Photo/Charles Krupa)