The Raiders designated Mayer (personal) for return from the reserve/non-football illness list Tuesday.
Raiders coach Antonio Pierce said Monday that he thinks Mayer (personal) is "getting close" to a return, Tashan Reed of The Athletic reports.
The Raiders placed Mayer (personal) on the reserve/non-football illness Friday.
Mayer (personal) remains away from the Raiders, Vic Tafur of The Athletic reports.
Mayer (personal) has been ruled out for Sunday's game at Denver, Paul Gutierrez of ESPN.com reports.
Mayer (personal) isn't participating in Thursday's practice, Tashan Reed of The Athletic reports.
Mayer (personal) remains away from the Raiders and doesn't have a timeline to return, Levi Edwards of the Raiders' official site reports.
Mayer (personal) won't play in Sunday's game against the Browns, Tashan Reed of The Athletic reports.
Mayer caught his only target for 11 yards in Sunday's 26-23 win over the Ravens.
Mayer caught two of three targets for three yards in Sunday's 22-10 loss to the Chargers.