Matthew Boyd is going to be on the shelf for the foreseeable future.

But this time it had nothing to do with any on-field injury.

The Cubs left-hander is set to undergo meniscus surgery on his left knee, manager Craig Counsell told reporters Wednesday. The skipper said Boyd suffered the injury Wednesday while sitting down to play with his children. Boyd then underwent an MRI that revealed the meniscus injury.

“Kind of an innocent, going down to the ground and getting back up,” Counsell said. “He woke up this morning a healthy player. He’s just trying to process it and get all the information from the doctors to figure out what’s next.”

As of now, there is no exact timetable for Boyd’s return to the field. According to the Cleveland Clinic, recovery from meniscus surgery can range from a few weeks to a few months.

“It’s kind of unexplainable,” Counsell added.

Boyd previously spent time on the injured list this season with a left biceps strain. He’s been limited to five starts, posting a 6.00 ERA and 1.29 WHIP. He did look better in his last start on Sunday, however, allowing two runs across a season-high six innings.

But between the injuries and downturn in his stats, 2026 has been something of a disappointment for Boyd after he was a National League All-Star for the first time last season. It helped him earn a spot on Team USA’s World Baseball Classic roster this spring.

The Cubs, even with Boyd’s struggles and time off the field, have been one of the better teams in baseball with a 24-12 record and are three games ahead of the Cardinals for first place in the National League Central.

To take Boyd’s roster spot, the Cubs called up reliever Trent Thornton.