Vasquez (10-6) earned the win Wednesday over the Pirates, allowing just one hit and two walks over five scoreless innings. He struck out two.
Padres manager Craig Stammen said Wednesday that Mize (ankle) felt good after his bullpen session and will start Friday against the Rays, AJ Cassavell of MLB.com reports.
Darvish (elbow) threw a bullpen session at Petco Park on Wednesday, AJ Cassavell of MLB.com reports.
Buxton (hip) is out of the lineup for Wednesday's game against the Athletics.
The Padres recalled Morgan from Triple-A El Paso on Wednesday.
The Padres placed Estrada on the 15-day injured list Wednesday with a right shoulder impingement.
Fermin will start at catcher and will bat ninth in Wednesday's game against the Pirates.
Campusano is not in the lineup for Wednesday's game versus the Pirates.
Pivetta (forearm) struck out four and allowed three earned runs on four hits and one walk in three innings Tuesday in a rehab start with Single-A Lake Elsinore.
Bradley (9-6) took the loss against the A's on Tuesday after allowing four runs on seven hits and a walk while striking out 11 over 6.2 innings.
