Photo: Dallas Mavericks/X

Cooper Flagg has added an inch to his listed height since his rookie season, measuring 6-foot-10 without shoes at the Dallas Mavericks’ physical ahead of the 2026-27 season.

Flagg was asked about reports that he had reached 6-foot-11, but the reigning Rookie of the Year clarified that his official measurement was slightly lower.

“Not very accurate. I’m 6’10. I got in my physical yesterday. I’m 6’10 with no shoes,” Flagg said.

Asked whether that meant he was taller than last season, Flagg confirmed the growth.

“Yeah. I was like 6’9 last year. So, I’m definitely taller,” he said. “No shoes, maybe I’m 6’11. I don’t know.”

The physical development comes as Flagg prepares for his second NBA season after averaging 21.0 points, 6.7 rebounds and 4.5 assists in 70 games during his rookie campaign. He shot 46.8% from the field but made 29.5% of his three-point attempts.

Flagg said his offseason was focused on improving his game while also taking care of his body and preparing mentally for another NBA season.

“Rookie season is done, so now I’m just improving for the rest of my career,” Flagg said. “Just trying to get better every single day, and that’s what this offseason was about for me.”

He added that he worked on individual skills while spending significant time in the gym with teammates.

“I thought it was a great offseason for me and a lot of the guys on the team. We had a lot of people in the gym all summer long, so it’s a good offseason,” Flagg said.

Flagg also enters the season with increased confidence in his offensive game. He acknowledged that his three-point shooting declined from his college level during his rookie season and attributed part of the issue to hesitation.

“I just felt like I was indecisive, I think, a lot of the year,” Flagg said. “I wasn’t confident shooting shots that I normally should.”

The 19-year-old said preparation and confidence were major areas of focus during the offseason.

“I have a lot of confidence right now in everything, my handle, my shot, my finishing,” Flagg said. “Taking that confidence from the summer into the season and staying in that confident, aggressive mind frame is going to help me to get off to a good start.”

Flagg also discussed his developing partnership with Kyrie Irving, saying the veteran guard makes the game easier for him.

“Kai is one of those guys, playing alongside that I feel like he just makes it easy to play with him,” Flagg said. “Obviously he’s one of the greats of our game, and he’s an incredible talent, but I think that combined with his personality makes it really easy to fit next to and play with.”

After Dallas went 26-56 last season, Flagg said establishing a stronger culture will be a major priority under new head coach Dusty May and team president Masai Ujiri.

“Getting back to obviously a winning culture, but a culture of competing every single night, playing really, really hard and trying to win as much as we can every single time we step on the court,” Flagg said.