Patrick Sandoval’s rehab start gives Red Sox another step toward a Boston return

Patrick Sandoval’s road back to pitching in a Major League game picked up momentum on Sunday, when the left-hander logged a four-inning rehab start for Triple-A Worcester. Sandoval worked three-hit, one-run baseball while also drawing a walk and recording three strikeouts, throwing 60 pitches as he moved through his outing inning by inning.

The session served as a measured, innings-building step in the Red Sox’s bigger pitching-recovery process. Rehab starts typically exist for two purposes at once, to reintroduce a pitcher to game-speed at-bats and to test whether his arm can complete multiple turns through a lineup without issue. By reaching four innings and staying on a workable pitch count, Sandoval checked a key box on that progression.

Sandoval’s line from the outing was straightforward, one run allowed on three hits, one walk, and three strikeouts over four frames. The numbers suggest he was able to locate and repeat his delivery long enough to challenge hitters while managing the kind of workload that comes with a return from missed time. The outing also provided a practical blueprint for what comes next, because it helps the organization gauge timing, stamina, and how he responds as fatigue creeps in later in the stint.

Boston’s timetable for his return remains tied to the usual health-and-performance checkpoints that follow rehab assignments. Sandoval previously last pitched in the majors in June, and this weekend’s start represented another bridge between that last big-league appearance and a potential return to the Red Sox rotation or relief usage, depending on how Boston structures his next steps.

For the Red Sox, adding a left-handed option with major league experience is valuable in a season where bullpen and rotation depth are constantly stress-tested. A healthy Sandoval would give Boston another starting-left profile and an additional arm they can deploy with more flexibility, especially in matchups that call for a specific handedness or a certain pitch-shape.

There is also a development angle for Worcester, where rehab assignments tend to resemble live auditions for the player and the club. Triple-A hitters face a real chance to see a pitcher under conditions that look more like the majors than typical practice environments, and that helps confirm whether adjustments made during recovery translate to competitive outcomes.

What to watch next is not only whether Sandoval can repeat this workload, but whether the quality of his mechanics and command holds up as the innings increase. If his subsequent outings build progressively, Boston would gain a more concrete path toward integrating him into the appropriate role. If not, the organization is likely to continue a cautious approach, prioritizing durability over rushing the return.