The 49ers designated Gross-Matos (knee) to return from injured reserve Wednesday.
Gross-Matos underwent knee surgery Friday, Eric Branch of the San Francisco Chronicle reports.
The 49ers placed Gross-Matos (knee) on injured reserve Saturday, Matt Maiocco of NBC Sports Bay Area reports.
Gross-Matos (knee) has been ruled out ahead of Sunday's matchup against the Cardinals, David Lombardi of The San Francisco Standard reports.
Gross-Matos (knee) was a limited participant in Thursday's practice, Adam Caplan of SiriusXM NFL Radio reports.
Gross-Matos (knee) did not practice Wednesday, Eric Branch of the San Francisco Chronicle reports.
Gross-Matos (knee) has been ruled out for Week 1 against the Jets, Matt Maiocco of NBC Sports Bay Area reports.
Gross-Matos (knee) did not practice Thursday, David Lombardi of The Athletic reports.
Gross-Matos is considered week-to-week after injuring his knee in Friday's preseason game against Las Vegas, Cam Inman of The San Jose Mercury News reports.
The 49ers signed Gross-Matos to a two-year, $18 million contract Thursday.