Padres right-hander Matt Waldron suffered a mild oblique strain on Friday and is going to "need some rest for some period of time," manager Mike Shildt says.

San Diego Padres righty Matt Waldron suffered a mild oblique strain while warming up before entering a spring training game. He may miss the start of the season.

Right-hander Matt Waldron sustained a mild oblique strain Friday, Padres manager Mike Shildt told MLB.com’s AJ Cassavell and other reporters. Waldron suffered the injury while warming up in the bullpen for a scheduled relief appearance in the Padres’ Cactus League game.

Ethan Salas and Leo De Vries have already played in big-league spring training games. They are on the fast track. For a day, many of their peers in the Padres’ farm system joined them. “You’re just trying to put players in different environments,

Nick Kurtz, Ethan Salas and more take the field as the top prospects from the Athletics and the Padres face off at Spring Breakout