Miles Mastrobuoni: Everything you need to know

Mastrobuoni (calf) began a rehab assignment Monday with the Mariners' Arizona Complex League affiliate, going 0-for-2 with a 1:1 K:BB. It was his first game action in more than four weeks, as he is working his way back from a right calf strain. The utility player should move up to a higher affiliate soon and is tracking toward a return in early June.

Seattle transferred Mastrobuoni (calf) from the 10-day injured list to the 60-day IL on Monday. Mastrobuoni had been in the midst of a rehab assignment with Triple-A Tacoma and appeared to be on the cusp of a return from the 10-day IL, but his move to the 60-day IL likely indicates that he suffered some sort of setback over the weekend. As a result of the transaction, Mastrobuoni now won't be eligible to make his 2026 debut with the Mariners until the final week of May, though an exact timeline for his activation is unclear. The utility player initially suffered the right calf strain in March while playing for Team Italy in the World Baseball Classic.

Mastrobuoni (calf) went 0-for-2 with a pair of walks in his first rehab game with Triple-A Tacoma on Wednesday. Mastrobuoni has finally been cleared for games after suffering a right calf strain nearly a month ago. It's unclear how many rehab games the Mariners will ask the utility player to play, but it figures to at least be a handful.