Matt Boyd set for Triple-A Iowa rehab start Sunday

Matt Boyd is lined up for a rehab start with Triple-A Iowa on Sunday, and the assignment looks less like a tune-up than a countdown clock. Craig Counsell said Boyd is expected to begin with one of two rehab outings for Iowa, a sign the Cubs are already testing how quickly their Opening Day starter can get back into the major-league rotation.

Boyd’s return path has been sharper than the original timetable suggested. MLB.com’s injury tracker lists him on the 15-day injured list dating to May 6, retroactive to May 4, after a left-knee meniscectomy on May 7. The Cubs had initially been looking at a late-June or early-July return, but Boyd’s rehab assignment now points to a possible arrival in Chicago much earlier if the knee holds up and the workload stays clean.

That workload is the key. Boyd already completed simulated multiple-inning mound sessions on May 22 and May 26, which told the Cubs he was past the point of simple bullpen work and ready for game action. Sunday’s start is expected to be his first live test, and the next one should tell Chicago whether it can fast-track him back into the mix or has to keep waiting for a full reset.

This is not Boyd’s first interruption of the season, either. He previously missed time with a left biceps strain before the knee issue forced another stop. The Cubs know exactly what they need now: healthy innings, no rebound in the knee, and enough sharpness to turn a rehab assignment into a real rotation answer.

That matters because Boyd was the Cubs’ Opening Day starter on March 26 against Washington, and Chicago has been juggling pitching injuries around his absence. A healthy Boyd gives the Cubs a veteran left-hander who can take pressure off the rest of the staff, and if the rehab work in Iowa goes as planned, the club could be getting back one of the pitchers it trusted most from day one. One clean series of rehab starts could shift this from a checkpoint to the final step before Boyd returns to Wrigley Field.