Skidding 49ers might be without Brock Purdy for Bengals' visit

(Photo credit: Jeffrey Becker-USA TODAY Sports)
The San Francisco 49ers, who captured the first five games of the season to extend their franchise-record, regular-season winning streak to 15, are suddenly riding a two-game skid as they face the Cincinnati Bengals on Sunday in Santa Clara, Calif.

The 49ers (5-2) are coming off a 22-17 road lossagainst the Minnesota Vikings on Monday night.

The offense was again led by ru