Inside The Celtics

It Took One Practice For Nikola Vucevic To Get Comfortable And Bury His Former Team

The newest member of the Boston Celtics is getting a crash course in Joe Mazzulla and team culture, and we're seeing quick results thanks to some time to refine.
Feb 11, 2026; Boston, Massachusetts, USA; Boston Celtics center Nikola Vucevic (4) drives on Chicago Bulls center Nick Richards (13) during the first quarter at TD Garden. Mandatory Credit: Winslow Townson-Imagn Images
Feb 11, 2026; Boston, Massachusetts, USA; Boston Celtics center Nikola Vucevic (4) drives on Chicago Bulls center Nick Richards (13) during the first quarter at TD Garden. Mandatory Credit: Winslow Townson-Imagn Images | Winslow Townson-Imagn Images

In this story:


BOSTON — It's amazing what one practice can do for a new guy. 

Nikola Vucevic, facing his old team in a revenge game after his trade to Boston (can it be called a revenge game if the guy getting traded was cool with it?), put to use some of the fine-tuning from this week’s practice to help bury the Bulls in Boston.  

“It helped a lot,” Vucevic said after the win. “Finally having some time to go through stuff. A little more detail, more reps—that always helps … it was a good step forward.”

Vucevic had everything on display on Wednesday night. The screens, the shots, the passes, the defense—all of it was there and looking sharper than his first two games after the trade. 

“His pick-and-roll positioning defensively was good, really good,” Joe Mazzulla said. “Offensively, the reads were good - the spacing, understanding where he is, the early offense reads, offensive execution—he just felt much more comfortable out there … he values the details and wants to get it right. So he put a lot of preparation into it and looked much better.”

Help from a familiar face

It’s been a bit of a crash course at Celtics University for Vucevic. He’s been given a lot to digest in a short amount of time, but luckily for him, he has an old teammate he can lean on in Boston. 

“Amile Jefferson,” Vucevic said. Jefferson played in Orlando in the 2018-19 and 2019-20 seasons, and is now an assistant coach with the Celtics. “I’ve known him for a long time, and he’s a great guy. So that helped me a little bit because it was a familiar face, somebody I’ve known. So that helped a lot. It helped make me a little more comfortable.”

Jefferson has been walking Vucevic through the ins and outs of what Boston does. The pair went to dinner last week, and Jefferson filled Vucevic in on everything from coverages and unique language to the expectations from Mazzulla and the team culture. Jefferson is a familiar face in a sea of confusion that is typical in the aftermath of a trade. 

“Joe is very detailed,” Vucevic said. “He sees something that the defense maybe is doing, or when the other team is on offense, [what] they try to run, and Joe just switches up matchups, switches up defenses … adjustments in the moment. He’s big into that.”

Digesting the lessons

Vucevic says he’s looking forward to the All-Star break so he can stop his head from spinning after the trade. The break will let Vucevic regroup, refresh, and return with a better sense of everything Mazzulla and the Celtics have been throwing at him. 

Until all that happens, Vucevic will lean on 15 years of NBA experience to just do what feels right on the floor. Basketball strategy can get insanely complicated, but the game is still a simple one. When the shot is open, take it. When a teammate is open, pass him the ball.

“I love him. It's great,” Jordan Walsh said. “Every time he catches the ball, I’m just cutting, and he's looking every time. So it's great. It’s a way to kind of get involved in the offense without having the ball in your hands. It's super good to have a guy to have to facilitate that and also stretch the floor and do so many things.”

The instincts will carry him for a while, and the team culture will help prop him up between now and whenever things become second nature. What we saw Wednesday night showed what 15 years of built-up basketball IQ, sprinkled with a bit of hands-on instruction, looks like. Those 15 years also bring a level of professionalism that gives Mazzulla the confidence that the rest will come around.

“He prepares,” Mazzulla said. “I don't know what he does at home. He's got a wife and kids, so I hope he's spending time with them, but he cares about the details, he cares about wanting to get it right, and he wants to win. So I trust the process of his preparation.”


Published
John Karalis
JOHN KARALIS

John Karalis is a 20-year veteran of Celtics coverage and was nominated for NSMA's Massachusetts Sportswriter of the Year in 2019. He has hosted the Locked On Celtics podcast since 2016 and has written two books about the Celtics. John was born and raised in Pawtucket, RI. He graduated from Shea High School in Pawtucket, where he played football, soccer, baseball, and basketball and was captain of the baseball and basketball teams. John graduated from Emerson College in Boston with a Bachelor of Science degree in Broadcast Journalism and was a member of their Gold Key Honor Society. He was a four-year starter and two-year captain of the Men’s Basketball team, and remains one of the school's top all-time scorers, and Emerson's all-time leading rebounder. He is also the first Emerson College player to play professional basketball (Greece). John started his career in television, producing and creating shows since 1997. He spent nine years at WBZ, launching two different news and lifestyle shows before ascending to Executive Producer and Managing Editor. He then went to New York, where he was a producer and reporter until 2018. John is one of Boston’s original Celtics bloggers, creating RedsArmy.com in 2006. In 2018, John joined the Celtics beat full-time for MassLive.com and then went to Boston Sports Journal in 2021, where he covered the Celtics for five years. He has hosted the Locked On Celtics podcast since 2016, and it currently ranks as the #1 Boston Celtics podcast on iTunes and Spotify rankings. He is also one of the co-hosts of the Locked on NBA podcast.

Share on XFollow John_Karalis