June 2, 2021 2:51 pm Duke coach Mike Krzyzewski to retire after 2020-21 season Duke head coach Mike Krzyzewski is reportedly set to retire following the upcoming 2021-22 college basketball season. Celtics Videos 1:04 Kristaps Porzingis talks ‘unbelievable' energy in Boston on parade day 0:36 Jayson Tatum talks rare chemistry with Celtics core 0:37 Derrick White details extensive dental work after injury in Game 5 0:31 Jordan Walsh describes Joe Mazzulla's ‘one care to give' philosophy 2:16 HIGHLIGHTS: Celtics can't hold on, drop final preseason game 119-118