Is Joe Mazzulla hurting the Boston Celtics? FOX Sports' national radio personality Colin Cowherd didn’t hold back in his critique of the Celtics' head coach following the team’s Game 4 loss to the New York Knicks.

Joe Mazzulla knew he had to mix things up. With the Celtics down 2-0 after disastrous collapses in the first two games of the Eastern Conference Semifinals in

"We had good intentions, we just didn’t execute," says Celtics coach after falling behind in the series against Knicks.

Mitchell Robinson received an ovation from the Madison Square Garden crowd when he made his first free throw in the Celtics' Game 3 win over the Knicks.

The Celtics insist they know what's wrong with Kristaps Porzingis, but they won't give away any details. Boston Celtics center Kristaps Porzingis has been dealing with an illness that knocked him out of the lineup in March and has forced him to miss time here and there ever since.