Cardinals general manager John Mozeliak said that Hudson (elbow) underwent successful Tommy John surgery Monday, Jeff Jones of the Belleville News-Democrat reports.

Martinez (oblique) is "not likely" to pitch again in 2020, even in the case of a deep postseason run by the Cardinals, Anne Rogers of MLB.com reports. "I'll never say never. But clearly, it's impactful for him the next several weeks," Shildt said. "We're not anticipating he'll be able to do a lot of anything. So you look at the schedule, and it's very unfavorable to think about a return."

Sanchez (left elbow pain) was transferred to the 45-day injured list Monday.

Brebbia (elbow) was placed on the 45-day injured list Sunday, Jeff Jones of the Belleville News-Democrat reports.

Plummer is on the minor league DL with a wrist injury, Tony Paul of the Detroit News reports.