As Mavericks rookie Cooper Flagg continues to take a physical beating early in his NBA career, his mother isn’t staying quiet about it. Kelly Flagg publicly pushed back on how her son is being officiated, and in the process, admitted she has a long history of “fighting the refs” over his treatment.

Breaking down Flagg’s impact against the Timberwolves, DLLS Mavs Podcast host Kevin Gray pointed out that the rookie was visibly hurting, holding his shoulder and limping. Beat writer Ron Harrod Jr. echoed that observation, posting, “Cooper Flagg is grabbing his side. He was also hobbling earlier.”

That quickly drew a response from Kelly Flagg, who fired back, “This is ridiculous how he gets thrown around and never gets a call.”

Kelly made it clear she believes her son is taking the brunt of the league’s physicality early in his rookie year. However, Harrod pushed back, comparing her reaction to a common AAU dynamic.

“If you ever play AAU, there were five billion Mama Flaggs out there that were like fighting the ref to the death… I’ve seen it a thousand times.”

She tweeted, “I actually was coaching their EYBL team and fighting the refs from there!”

Kelly’s perspective carries weight beyond that of a typical parent. A former standout at the University of Maine who helped lead the program to multiple NCAA tournament appearances, she later coached Cooper at the EYBL level and still plays an active role in his development today. That background gives her criticism more credibility than a typical sideline reaction.

The Timberwolves’ physicality clearly took a toll on Flagg during the 124-94 loss. He absorbed a hard accidental backhand from Rudy Gobert while tracking the ball and took another bump in the second quarter, moments that disrupted his rhythm. As a result, the rookie finished with just 12 points on 5-of-19 shooting after starting 1-for-10.

Even teammates backed him, while also offering perspective on the adjustment. “I feel like it helps him understand how physical it gets around postseason play,” Daniel Gafford said. “Every night you’re going to have the best defender on you, teams trying to get into your airspace and make everything tough.”

Cooper Flagg’s mom already vented her frustration

Kelly Flagg’s frustration didn’t come from just one game. Last week against the Denver Nuggets, with under a minute left in the fourth quarter, the rookie came crashing down while chasing a long pass, landing awkwardly on his left elbow and right wrist.

Blood stained his jersey as he gashed his left elbow, while his swollen right arm had to be iced immediately. Brad Townsend of the Dallas Morning News even noted on X that it was “probably best that mom didn’t see the bloody jersey and heavily wrapped hand.”

That kind of public defense isn’t new in basketball. Figures like LaVar Ball have openly challenged officials and narratives around their sons, while Tee Morant has been a visible courtside presence backing his own. In that sense, Kelly Flagg’s reaction fits a familiar pattern, even if it feels amplified at the NBA level.

Kelly, who has voiced similar frustrations throughout the season, summed it up with a simple post: “Every game 😢.” Her reaction reflects a growing concern about how much contact her son is absorbing, and if this trend continues, it could shape both how Flagg adjusts to the league and how closely his treatment gets scrutinized moving forward.