Mayer (nose) returned to practice Thursday, Sam Warren of The Athletic reports.
Mayer suffered a nose injury during Monday's session, but he's back at practice and thus slated to continue to work behind top TE Brock Bowers. Though Bowers will no doubt see heavy volume this coming season, Mayer also figures to make his mark in the two-TE formations the Raiders figure to utilize regularly, with their WR corps very much a work in progress.