MLB's No. 41 prospect Michael Arroyo (@Mariners) underwent elbow surgery on Friday, per a team release.
The 21-year-old -- who hit .371 after being called up to the bigs in September -- could return to game action in April:
MLB has spent months arguing payroll disparity is damaging competitive balance.
Yet heading into the LCS, 3 of the 4 remaining teams are below the league-average payroll, including the Rays (27th) and either the White Sox (26th) or Guardians (29th).