Joe Musgrove reaches 70-pitch mark in third rehab start as Padres keep building their pitching staff

San Diego’s pitching depth got another data point Friday night as veteran right-hander Joe Musgrove stretched out during his third rehab start. In the appearance, Musgrove worked 4 2/3 innings and reached 70 pitches, an outing that suggests his arm is continuing to progress after the time he has spent rebuilding strength and stamina.

The Padres have been reshaping their rotation picture following the Trade Deadline, swinging deals to add new pieces as they look for stability down the stretch. With multiple reinforcements arriving and now Musgrove moving closer to activation, the organization is trying to align short-term rotation needs with longer-term October requirements.

Musgrove’s rehab workload matters because it reflects both tolerance and planning. Getting to 70 pitches in a third rehab appearance indicates the club is comfortable increasing his workload in a measured way, rather than rushing him back into meaningful innings before he demonstrates he can repeat the effort.

Friday’s outing also plays into bullpen management. Even when teams are winning with run prevention, they need starters who can go long enough to reduce the number of high-leverage innings asked of late-inning relievers. As the Padres refine roles after midseason roster moves, a returning starter can change how manager resources are distributed across a given series.

There is still an obvious gap between a rehab start and being available for a full regular-season workload. Musgrove’s next steps likely will be about whether he can maintain command and effectiveness as fatigue builds, and whether his pitch count and recovery line up with whatever schedule the Padres are targeting for his return.

The immediate storyline for San Diego, though, is that the injury-to-return arc is staying on track. Musgrove is now at a 70-pitch threshold, which often becomes a reference point teams use when deciding how close a pitcher is to being able to handle rotation usage.

For fans, the most important thing to watch next is the sequence after this rehab start: how the club schedules his subsequent bullpen or rehab assignments, and when Musgrove is placed into a rotation slot. If his progression continues without setbacks, he could become a central figure in how the Padres manage pitching matchups in the late-season stretch.