Boston Celtics head coach Joe Mazzulla loves to push his players, and his halftime challenge sparked the team's comeback win ...

According to Jayson Tatum, Joe Mazzulla challenged the Celtics at halftime, reminding the starters that he could bench them.

Tatum and Jaylen Brown played the entire second half as Boston fought back against a feisty Philadelphia squad that shot 46.9 ...

The Celtics came back from a 26-point deficit to beat the Philadelphia 76ers. Jayson Tatum reveals that at halftime, Joe ...

The Celtics and Cavaliers split the first two games of their season series, with each team winning on its home floor. Boston ...

The Boston Celtics found themselves on the brink of an embarrassing loss to the Philadelphia 76ers, trailing by as much as 26 points during the third quarter.

It was a strange yet insightful way to explain how a lackluster first half, which saw Tyrese Maxey lighting up the Celtics ...

The Celtics had every reason to slump their shoulders against the 76ers, but instead, C's coach Joe Mazzulla said he saw ...

Cleveland scored 91 points in the first half and set a franchise record by making 26 3-pointers in its 144-101 triumph over ...

Mazzulla challenged his stars at halftime to play with more energy or give up their minutes to the bench. They responded.

Tatum was shocked. Horford was in disbelief. Mazzulla pretended he didn't care. The Celtics had strong reactions to the Luka ...

The Dallas Mavericks, rocked by the sudden trade of superstar Luka Doncic and wracked by injuries, were blown out 144-101 by ...