
via Imago
Oct 28, 2024; Dallas, Texas, USA; Dallas Mavericks center Dereck Lively II (2) in action during the game between the Dallas Mavericks and the Utah Jazz at the American Airlines Center. Mandatory Credit: Jerome Miron-Imagn Images

via Imago
Oct 28, 2024; Dallas, Texas, USA; Dallas Mavericks center Dereck Lively II (2) in action during the game between the Dallas Mavericks and the Utah Jazz at the American Airlines Center. Mandatory Credit: Jerome Miron-Imagn Images
Something smells off in Dallas, and it’s not just the barbecue. Dereck Lively II was originally listed with a “right ankle sprain”, but surprise, surprise: it was actually a stress fracture all along. Then, just like that, he’s ruled out for 2-3 months. Cue the collective facepalms. How did the Mavericks’ medical team miss that? This isn’t a twisted pinky from a random practice bump; this is your cornerstone center, sidelined because of what looks suspiciously like a blatant override of the initial diagnosis. And now, the fallout is loud.
According to reports from Marc Stein and DCLS Sports, Dereck Lively’s injury led to an internal blowup between head of health and performance Johann Bilsborough and longtime strength coach Keith Belton. That confrontation, insiders say, was the last straw. Belton is reportedly out the door. Bilsborough? Somehow still in.
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Dereck Lively’s foot injury, as @TheSteinLine and @DLLS_Sports first reported following Dallas’ season-ending loss at Memphis, led to a blowup between department lead Johann Bilsborough and strength coach Keith Belton.
Belton has been let go. It’s believed Bilsborough stays. https://t.co/9oOGq7lwMY
— Marc Stein (@TheSteinLine) May 7, 2025
Now, don’t let the jargon fool you. This wasn’t just a difference in “treatment philosophy.” This was an all-out clash in the locker room over how to handle a key player’s health, and it happened as the Mavs were trying to solidify their postseason standing. Fans and analysts alike are scratching their heads. Because when a guy goes from “day-to-day” to “months out” in less than a week, someone clearly dropped the ball.
Let’s rewind. Dereck Lively missed multiple games in the second half of the season because of vaguely described “ankle soreness.” But anyone paying close attention knew something was fishy. There were whispers, mounting concern, and then… radio silence. Then, bang: bombshell reports. It wasn’t the ankle. It was the foot. A stress fracture.
Dereck Lively’s Misdiagnosed Injury Exposes Deep Cracks in Mavericks’ Medical Staff
To the Mavericks’ credit, GM Nico Harrison told ESPN the team eventually caught the issue before it became catastrophic. “The medical team knew it was something more, and so that’s why they went and tested him again and saw the CT scan… they actually avoided a potential catastrophic injury,” Harrison said. “They went back. They stopped him from playing,” he continued, only to conclude with, ,”They re-tested, and thank God we saw that he had a stress fracture.”
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Is Dallas' medical misstep a sign of deeper issues within the Mavericks' organization?
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That moment of redemption, however, does little to erase the timeline missteps. Why wasn’t the CT scan done earlier? Why was the injury brushed off as an ankle tweak in the first place? These aren’t minor details. This is the sort of mismanagement that has ripple effects throughout a roster and a locker room.

The Mavericks have already had a reputation for vague and inconsistent injury reporting. Dereck Lively, meanwhile, was thrust into major minutes early in the season and quickly became one of Dallas’ most promising two-way anchors. The last thing this team can afford is to mismanage his development, let alone his health.
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Now, with the playoffs underway and every possession mattering more than ever, Dallas enters the biggest games of its season under a cloud of medical mismanagement. It doesn’t help that the coaching staff is now short a strength coach and operating under what feels like a divided medical philosophy.
And fans? They’re livid. X (formerly Twitter) and Reddit are buzzing with outrage. “How did they miss that?” is now being replaced with “What else are they missing?”
This goes beyond one bad scan. It calls into question the entire infrastructure of player care in Dallas. If there are power struggles between the people responsible for keeping players healthy, that’s a serious culture problem. You can’t compete at a championship level if your cornerstone players are being misdiagnosed mid-season, and you definitely can’t build trust with your fanbase or players with this kind of chaos happening behind closed doors.
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When you look at other playoff-bound teams, there’s a sharp contrast. The Golden State Warriors, for example, have long been lauded for their proactive injury management, with a multi-pronged approach to physical therapy, rest, and diagnosis. Meanwhile, the Mavs seem to be playing catch-up, reacting instead of anticipating. It’s no surprise that the team’s chemistry has been shaky. When an organization mismanages a player’s health, it conveys that it’s not fully committed to protecting its most important assets.
With Belton reportedly out and Bilsborough still in place, the shake-up behind the scenes raises more questions than answers. Was this a necessary reset, or just damage control? Either way, the Mavericks can’t afford another injury debacle. If the Mavericks misjudge or let more situations linger, the pressure in Dallas will affect not only the players but also the whole medical staff and key stakeholders involved. Dereck Lively’s injury may have been a wake-up call. But if the Mavericks hit snooze, the consequences could go far beyond one fractured foot.
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Is Dallas' medical misstep a sign of deeper issues within the Mavericks' organization?