
The Boston Celtics open the preseason Thursday against the Cavaliers in Cleveland. The road trip to The Citadel for the final stretch of camp is nearly over, and the conversations are already turning toward the practical realities of a long regular season.
For a roster built around Jayson Tatum, the most important question heading into Year 10 is not about talent. It is about durability. Tatum is 16 months removed from a ruptured Achilles. His comeback last spring was gutsy. Now, a full summer of preparation has him feeling confident in ways he was not when he first came back.
Whether the Celtics can keep him feeling that way over 82 games is a question Joe Mazzulla addressed directly during camp.
Mazzulla Sets the Expectation on Tatum
Mazzulla made clear that the organization’s approach to Tatum’s workload is built on trust rather than rigid restrictions.
“It starts with doing everything you possibly can to be out there,” Mazzulla said. “We trust him, we trust our sports science team. That’s why we have 10 of them. We trust his trainer.”
The Celtics have invested heavily in the infrastructure around Tatum’s health, and Mazzulla views that group as central to keeping their best player available over the course of a full season.
He framed the goal not as a specific games-played number but as reliability.
“We want the expectation that we can rely on you every single night,” Mazzulla said.

Mazzulla on Playing 82
Mazzulla also addressed the broader roster when it comes to availability, and his comments carried a practical honesty.
“The expectation of playing all 82 isn’t realistic,” Mazzulla said. He noted that only one or two players on the current roster have ever done it, and said the real focus is extracting the best from each player across the full length of the season, however that looks.
Mazzulla described a culture where players are trusted to compete when they can and push through when things get difficult. He said the standard the team has maintained since he took over is rooted in competitive character, and that players will try to be out there even when they feel less than 100 percent.
“Even if they feel like they can’t, they’re still gonna try,” Mazzulla said. “As long as we keep that standard.”

Final Word for the Celtics
Tatum has been a full participant in every practice session since camp opened and looks like the version of himself the Celtics have been waiting to see.
Mazzulla is not promising 82 games. He is promising the right process. Trust the player, trust the staff, and build toward a season that peaks when it matters most.
For a team trying to contend without Jaylen Brown, keeping Tatum on the floor is everything. Mazzulla knows it.
Celtics Get Notable Jayson Tatum Update Ahead of Preseason Opener