49ers' Quarterback Brock Purdy Possibly to Play Against Bengals Post-Concussion

Brock Purdy, San Francisco 49ers quarterback, listed as a full participant in Friday's practice and primed to start against the Cincinnati Bengals, provided he clears the final stage of the NFL's concussion protocol on Saturday.

Brock Purdy, the quarterback for the San Francisco 49ers, is expected to play against the Cincinnati Bengals, provided he clears the final stage of the NFL's concussion protocol.
Purdy has made steady progress throughout the week, participating in a walkthrough, having a limited practice, and then being a full participant on Friday.
Despite being diagnosed with concussion symptoms on Monday after a game against the Minnesota Vikings, Purdy has passed four of five steps in the concussion protocol.
Head coach of the 49ers, Kyle Shanahan, confirmed that if Purdy clears the protocol, he will be the starting quarterback. If not, Sam Darnold will take over.
Alongside Purdy's status, the 49ers are also monitoring the progress of All-Pro offensive lineman Trent Williams, who has been recovering from an ankle injury.