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Rockies Add Vimael Machín After Willi Castro Placed on IL

A prior waiver claim forced a 40-man roster move to clear space for short-term infield depth.

Aug 28, 2026; Atlanta, Georgia, USA; Colorado Rockies third baseman Willi Castro (3) hits a single against the Atlanta Braves in the second inning at Truist Park. Mandatory Credit: Brett Davis-Imagn Images
Aug 30, 2026; Cumberland, Georgia, USA;  Colorado Rockies second baseman Willi Castro (3) against the Atlanta Braves during the third inning at Truist Park.  Mandatory Credit: Mady Mertens-Imagn Images

Overview

  • The Rockies selected infielder Vimael Machín's contract and placed utilityman Willi Castro on the 10-day injured list, transactions announced Saturday.
  • Castro's IL placement was made retroactive to Sept. 2 for left-heel inflammation/plantar fasciitis and a sore right knee and could end his regular season playing time.
  • Machín arrives from Triple-A Albuquerque where he hit .290/.371/.445 with 12 home runs this year and brings prior big-league experience at multiple infield spots.
  • To open a 40-man spot for Machín, Colorado outrighted Tyler Freeman to Triple-A after he cleared waivers; Freeman has the right to reject the assignment and elect free agency because of his service time.
  • The roster churn follows the Rockies' recent claim of LHP Hayden Harris and reflects late-season depth checks and evaluation of younger players as the club finishes a rebuilding year.