Nicholas Pivetta: Everything you need to know

Padres manager Craig Stammen told reporters Wednesday that Pivetta was diagnosed with a right flexor strain, Jeff Sanders of The San Diego Union-Tribune reports. Per Annie Heilbrunn of the San Diego Sports Association, Stammen believes that Pivetta is looking at "weeks, maybe months" of rehab and rest. That kind of timeline indicates that Pivetta will be out of action until the summer, potentially through the All-Star break in mid-July. Matt Waldron (lower body) is slated to take Pivetta's spot in the rotation later this week once the former is activated from the 15-day IL.

Padres manager Craig Stammen said Tuesday that Pivetta underwent an MRI on his elbow, but the Padres are still awaiting the results before a timeline for the right-hander's return is established, Jeff Sanders of The San Diego Union-Tribune reports. Pivetta exited his most recent start Sunday against the Rockies due to an injury the Padres initially labeled as right elbow stiffness. Upon placing Pivetta on the 15-day injured list Tuesday, the team classified his injury as inflammation, but the severity of the issue won't known until the MRI results are in. Matt Waldron (lower body) is expected to be reinstated from the 15-day injured list later this week to take over Pivetta's spot in the rotation.

The Padres placed Pivetta on the 15-day injured list Tuesday, retroactive to April 13, due to right elbow inflammation. In a corresponding move Tuesday, the Padres recalled Alek Jacob from Triple-A El Paso. Pivetta suffered the injury in his start Sunday when he had to exit in the fourth inning due to right elbow stiffness. After additional testing, the right-hander will miss some extended time and is eligible to return at the end of April.