The Dallas Mavericks can finally exhale. After rookie phenom Cooper Flagg was spotted in a walking boot — sending panic through the fan base — new medical imaging delivered encouraging news. The injury has been diagnosed as a left midfoot sprain, avoiding the kind of structural damage that could have ended his season.
League insider Marc Stein reports that Dallas feels “fortunate” the MRI showed no major long-term damage, turning what looked like a potential disaster into a manageable short-term setback.
MRI Results Bring Major Relief
Flagg suffered the injury during a game against the Phoenix Suns, and the team immediately moved cautiously. The walking boot raised fears of a fracture or Lisfranc injury — both of which can sideline players for months — but scans confirmed a sprain rather than a tear or break.
Key takeaways:
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Injury: Left midfoot sprain
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Structural damage: None detected
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Return timeline: Targeting shortly after All-Star break
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Next game: Feb. 20 at the Minnesota Timberwolves
The rookie already missed a matchup with the Los Angeles Lakers and the Rising Stars Game, but the expectation is that his absence will be brief.
Mavericks’ Losing Streak Raises the Stakes
Flagg’s health matters even more given Dallas’ current slide. The Mavericks limped into the All-Star break on a nine-game losing streak, their worst since the 1997–98 season, and sit at 19–35.
Dallas is just 2–3 without Flagg, highlighting how quickly the 18-year-old has become the team’s most impactful player.
For a rookie who dominated at every previous level, this stretch marks the first sustained losing period of his career, adding a developmental challenge alongside the injury recovery.
Historic Rookie Production Still Intact
Before getting hurt, Flagg wasn’t just leading the Rookie of the Year race — he was rewriting record books.
During a four-game tear against Charlotte, Houston, Boston, and San Antonio, he:
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Scored 151 total points
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Became the youngest player ever with four straight 30-point games
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Joined Allen Iverson (1997) as the only rookies with 151+ points over four games
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Matched a feat last accomplished by Michael Jordan (30+ points, 5+ rebounds in four straight as a rookie)
Season averages:
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20.4 points
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6.6 rebounds
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4.1 assists
Those numbers have made him the clear cornerstone of Dallas’ rebuild.
The Post-Luka Era Belongs to Flagg
After the franchise-shifting trade that sent Luka Dončić out and brought Anthony Davis in — only for Davis to be moved later — the Mavericks have fully committed to a youth-driven reset built around Flagg.
The stakes are enormous:
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Dallas currently holds 7.5% lottery odds in a loaded 2026 draft
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The team does not control its own first-round pick outright until 2031
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Maximizing this development window is critical
That makes protecting Flagg’s health just as important as chasing wins.
What Comes Next
If Flagg returns shortly after the All-Star break, the Mavericks will likely:
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Ease him back with minute restrictions
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Prioritize long-term durability over short-term results
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Continue giving him primary offensive control for development
Even in a losing season, his growth remains the organization’s top priority.
What looked like a potential season-altering injury has turned into a manageable midfoot sprain, and that’s a massive win for Dallas. With Cooper Flagg expected back soon, the Mavericks can refocus on their true mission: building a new era around one of the most electrifying rookies the league has seen in decades.
If you want, I can break down Flagg’s Rookie of the Year competition, his advanced stats, or how Dallas should structure the roster around him for 2026–27.
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