Greenlaw (Achilles) is not expected to be ready for his season debut until a few weeks after the 49ers' bye, Nick Wagoner of ESPN.com reports.

Coach Kyle Shanahan said Monday that he's "hoping" Greenlaw (Achilles) can return around the middle of the season, Eric Branch of the San Francisco Chronicle reports.

The 49ers placed Greenlaw (Achilles) on the active/PUP list Tuesday, David Lombardi of The Athletic reports.

Greenlaw (Achilles) no longer requires a walking boot, Eric Branch of the San Francisco Chronicle reports.

Greenlaw (Achilles) is shooting to be ready for the start of the season, according to GM John Lynch, but he may need to start the season on the PUP list, Matt Maiocco of NBC Sports Bay Area reports.

Greenlaw (lower leg) is questionable to return to Sunday's game against the Chiefs, Nick Wagoner of ESPN.com reports.

Greenlaw (Achilles) didn't participate in Tuesday's practice, Matt Barrows of The Athletic reports.

Greenlaw (Achilles) is inactive for Sunday's game against the Rams, Eric Branch of the San Francisco Chronicle reports.

Greenlaw (ankle/hip) is not among San Francisco's inactives Sunday versus the Cardinals.

Greenlaw (ankle/hip) did not practice Wednesday, Cam Inman of The San Jose Mercury News reports.