Mavs’ Dereck Lively to undergo season-ending foot surgery

The Mavericks have officially confirmed the news, announcing (via Twitter) that Lively is expected to make a full recovery and be ready for training camp next fall.

It’s a brutal blow for the Mavs and especially for Lively, whose right foot has been an issue since he sustained a fracture in the foot/ankle area last January. That injury sidelined him for over two months and required him to undergo surgery in July in the hopes of fixing the issue.

Although the 21-year-old was cleared to return for opening night, he continued to be plagued by health problems, missing a nine-game stretch in October and November due to a right knee sprain, then battling nagging discomfort in his right foot. Reporting late last month indicated that the Mavs were concerned Lively would require an extended absence, with word breaking last week that he was consulting with multiple doctors about potential next steps.

According to MacMahon (Twitter link), Lively sought second and third opinions on his foot injury in the hopes of avoiding another surgery, but it was ultimately determined that another procedure would be necessary.

Injuries have been a recurring problem for Lively since he entered the NBA as the 12th overall pick in the 2023 draft. He has made only 98 regular season appearances since then, including seven in 2025/26, and has played just 2,242 total regular season minutes — as a point of comparison, 51 NBA players exceeded that total in ’24/25 alone.

When healthy, Lively has been a positive contributor, performing well enough to be viewed as Dallas’ long-term starting center. The former Duke standout has averaged 8.4 points, 7.0 rebounds, and 1.5 blocks in 22.9 minutes per contest while shooting 72.5% from the floor. He also averaged 22.0 MPG off the bench during the Mavs’ run to the 2024 NBA Finals, contributing 7.9 PPG and 7.4 RPG across 21 postseason outings.

With Lively ruled out for the season, the Mavs will lean on Anthony Davis and Daniel Gafford in their frontcourt, though both players are considered possible trade candidates. Veteran big man Dwight Powell and two-way player Moussa Cisse are available off the bench to provide depth in the middle, with forward P.J. Washington a candidate to play some small-ball center if needed.

Lively, meanwhile, will become eligible for a rookie scale extension during the 2026 offseason, before he plays his next game. If he and the Mavericks don’t come to terms on a new deal prior to the start of the ’26/27 season, he would be on track for restricted free agency in 2027.

Dallas will likely apply for a disabled player exception in response to Lively’s injury, but it would be worth just $2,626,680 (half of Lively’s $5,253,360 salary) and wouldn’t give the team the ability to surpass its second-apron hard cap. The Mavs are currently operating roughly $1.29MM below that hard cap.