Like a perfect game in baseball, San Francisco 49ers running back Christian McCaffrey has tried his best not to talk about his streak of consecutive games scoring a touchdown. But he will undoubtedly be asked about it again Sunday evening.

That's because McCaffrey made a little bit of history against the Cincinnati Bengals at Levi's Stadium, scoring a touchdown in his 17th consecutive game. That ties him with Lenny Moore, the Baltimore Colts Hall of Fame running back/receiver, for the longest streak in NFL history. Moore's streak stretched over the 1963 and 1964 seasons.

San Francisco 49ers quarterback Brock Purdy has cleared the concussion protocol, the team announced Saturday afternoon.

Niners coach Kyle Shanahan said Friday that if Purdy passed the final step of the protocol, as the team hoped, he would "definitely" start against the Cincinnati Bengals on Sunday.

"To me that wasn't a decision because how he's been throughout this week," Shanahan said. "And now that's why he's going to have a chance."

San Francisco 49ers quarterback Brock Purdy has not yet cleared concussion protocol, but there is still a realistic chance he will start Sunday against the Cincinnati Bengals.

Purdy went into concussion protocol early Tuesday after feeling symptoms on the team's plane ride home from Minnesota late Monday night. Since then, Purdy has passed four of the league's five steps in the concussion protocol.

That has allowed Purdy to participate in practice on a limited basis Thursday and then be full go in Friday's session.