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Mavericks Rookie Cooper Flagg Out With Midfoot Sprain as Ace Bailey Replaces Him in Rising Stars

The MRI-confirmed injury leaves his return timeline unclear heading into the All-Star break.

Overview

  • Dallas announced an MRI revealed a left midfoot sprain for Cooper Flagg sustained Tuesday at Phoenix, ruling him out for Thursday’s game at the Lakers and for the Rising Stars event.
  • The NBA named Utah rookie Ace Bailey to replace Flagg on Team Melo for Friday’s Rising Stars mini-tournament.
  • The Mavericks have not set a timetable for Flagg’s return and said updates will be provided as appropriate, with one report citing a team source suggesting he could be available after the break without a firm date.
  • Injury analyst Jeff Stotts noted midfoot sprains can vary widely in severity and historically average about 8.5 games missed, a general estimate not specific to Flagg.
  • Flagg, the 2025 No. 1 pick, is averaging roughly 20.4 points, 6.6 rebounds and 4.1 assists; his absence comes during Dallas’s extended skid and could tighten the Rookie of the Year race highlighted by Charlotte’s Kon Knueppel.