Celtics Summer League Group Exposed A Problem Fans Were Already Worried About

With key players missing and shooting inconsistencies resurfacing, the Celtics faced energy and execution challenges in their Summer League defeat to the Hawks.

LAS VEGAS -- Boston’s Summer League momentum hit a wall on Monday afternoon, and the Atlanta Hawks made sure of it. With Hugo Gonzalez and Amari Williams in street clothes, the Celtics were overwhelmed in a 102-90 loss that got away fast, with Atlanta stretching the margin to as many as 29 points in the fourth quarter.

Amile Jefferson said after the game that the Celtics never really found the right gear.

“I think the biggest thing is just our energy," Amile Jefferson said post-game. "I thought our energy wasn't there, and they were shooting like 7% from three at halftime.

They were making a lot of tough shots, and they were bigger than us at points, and it was hard to keep them off the glass. And I think we all know that this game truly comes down to shot-making and rebounding, and they did that at a higher level than us today.

And they went out and grew a big lead, and it was hard for us to get back in.”

That showed up everywhere Boston needed stability most. Gonzalez’s ball-handling was missed, and Williams’ passing would have helped settle the offense.

Instead, Milos Uzan and Curtis Jones were left to steer the group, and the results were uneven. Uzan had stretches where he looked comfortable in the pick-and-roll, but Jones had a rough afternoon.

Jones hurt Boston with turnovers and questionable shot choices, often passing up open looks to force contested attempts. His work on defense didn’t help either.

Atlanta got a huge night from Kobe Johnson, the brother of Hawks star Jalen Johnson. He scored 30 points on 11-of-18 shooting and went 4-of-9 from deep. Henri Veesaar, a projected fringe first-round talent who slid to pick No. 52, also delivered a strong performance with 20 points, four rebounds, and three assists while shooting 7-of-12 from the floor and 4-of-6 from three.

Boston did at least get to 90 points, which is not a bad number in Summer League, but the efficiency gap told the story. The Celtics actually took three more shots, two more free throws, two more threes, and grabbed six more offensive rebounds than Atlanta. The Hawks still made five more field goals and hit two more triples.

The night was uneven across the board for Boston. Rookies Dillon Mitchell and Chris Cenac Jr. had very different outings, and Tucker DeVries was the most noticeable performer outside of them.

DeVries finished with 11 points, one rebound, and one assist on 4-of-10 shooting and 3-of-8 from beyond the arc. His jumper is clean when it goes down - the kind of shot that looks effortless on makes and brutal on misses.

The misses were loud, bouncing off the rim or missing badly. He also had a defensive lapse when he missed a rebound and got called out by Jefferson in the huddle.

There’s something workable there, but he’s still a project.

John Tonje, after back-to-back strong games, had a quiet one. He scored five points and added two rebounds while shooting 2-of-8 overall and 1-of-6 from deep. Boston needed more from him, and it never came.

Elsewhere, Hank Morgan gave the Celtics some decent minutes, Kyle Mangas hit a few shots but didn’t hold up well defensively, and Nick Pringle showed off his athleticism without always being in the right place at the right time. The absence of Gonzalez and Williams loomed large, especially Gonzalez.

Mitchell didn’t stuff the box score the way he did on Sunday, but he still finished with 11 points, four rebounds, and two assists on 5-of-10 shooting and 1-of-3 from three.

In Other News...

Celtics Fans Just Got The Dillon Mitchell Sign They Were Hoping For

The Celtics kept rolling in Las Vegas, moving to 2-0 at NBA Summer League with a win over the Hornets, and Dillon Mitchell was at the center of it. Bostons No. 40 pick in the 2026 NBA Draft led the way with 24 points, while also piling up eight rebounds, six steals and two blocks in a performance that gave the team plenty to like on both ends.

Mitchells value for Boston has always been tied to his energy and versatility, but this was a more complete showing than the one he put together in college. He attacked the glass, created turnovers and looked far more comfortable as a scorer, the kind of all-around line that can make a front office take notice even in the middle of summer league. The bigger question now is whether this was a one-night flash or the first real sign that he can carry that growth into the next stage. [Read more 🡒]

Celtics Just Made A Franchise Shaking Bet Fans Will Debate

The Celtics have taken a swing that will reshape the roster and the conversation around it, adding Paul George and future draft picks in a move that signals a willingness to chase a different kind of ceiling. According to the teams official release, the deal comes with multiple future selections and conditions attached, the sort of fine print that can matter just as much as the headline in a trade this large.

George arrives with plenty of name value, but also with real questions after two seasons in Philadelphia that were defined by injuries and uneven production. Boston is betting that the version of George it gets now can still tilt a playoff race, while the draft compensation gives the front office some insulation if the fit is not as seamless as the price tag suggests. [Read more 🡒]

Jordan Walsh Knows What Could Keep Him Off The Floor Late

Jordan Walsh spent last season carving out a real place in Bostons rotation, getting into 68 games and showing why the Celtics value his defensive versatility. He also flashed enough on offense to make this summer feel important, because the next step for a young wing on a contender is rarely about effort or activity. It is about becoming someone the coaching staff can trust when the game tightens and possessions get harder to find.

Walsh said during Summer League that his focus is on becoming a better scorer and playmaker, with the goal of giving himself more ways to stay on the floor late. He knows the margin is thin for wings in Boston, especially with the roster shifting around him, and he has pointed to the need to improve his shot, handle and ability to create his own offense in small pockets. The opportunity is there for him to grow into a bigger role, but so is the pressure to prove he can be more than a specialist when the Celtics need a bucket. [Read more 🡒]