Musgrove (elbow) struck out two batters over 3.1 innings while allowing two earned runs on four hits and zero walks in his rehab start Sunday with Single-A Lake Elsinore.
The Padres initially planned to have Musgrove make his first rehab start with Double-A San Antonio, but after his flight to Texas on Saturday was canceled, the organization ultimately had him stick around in California to begin his minor-league assignment. Though he was facing off against lower-caliber competition, Musgrove's results in his first start at any level since late May were generally encouraging. He spotted 35 of his 43 pitches for strikes in the outing, and his fastball sat around the 94-to-96 mile-per-hour range. Musgrove is expected to require one more start in the minors before he makes his return from the 60-day injured list.