They may not, however, have to look any farther to find their starting center as they likely signed him last summer when they locked up German big man Daniel Theis to a two-year, $10 million contract.

There was no question that, over the course of his time in the NBA’s bubble in Orlando this summer, Celtics center Daniel Theis saw his performance wane. What was not known—publicly at least ...

Chris Matthews, also known as “Lethal Shooter" on social media, is a skills trainer for Boston Celtics forwards Grant Williams and Daniel Theis ... exclusive” shoe. You’re looking at ...

That’s when he turned to ol’ reliable: Daniel Theis. It was the first time since March 24 that Theis checked in with a Celtics jersey. Despite not being in game shape nor fully implemented in ...