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White Sox Rookie Hits Walk-Off Home Run in Major-League Debut

The shot signals that rookie call-ups can alter games, prompting rapid roster moves.

Overview

  • Braden Montgomery, called up from Triple-A Charlotte, went 2-for-5 and delivered a two-run, 10th-inning walk-off homer in his MLB debut Tuesday to lift the Chicago White Sox to a 6-5 win over the Atlanta Braves.
  • Braves star Ronald Acuña Jr. left that game with left hamstring tightness, will have an MRI and is being listed day-to-day as Atlanta monitors whether he needs short-term time off.
  • Mets starter Freddy Peralta has shown growing inconsistency, allowing six runs in six innings in New York’s 7-0 loss to St. Louis and recording at least four runs allowed in three of his last four starts.
  • The past week has featured a string of late-inning swings, walk-offs and power outbursts across the league that have made single plays and debut performances decisive for short-term standings.
  • Managers are responding to injuries and uneven pitching by using short-term fixes such as openers, bullpen shuffles and prospect call-ups while tracking medical updates and rehab assignments.