SANTA CLARA, Calif. (AP) Jimmy Garoppolo's first two games of the season have been a mixed bag, with his shining moments counterbalanced by mistakes.
A stern challenge awaits San Francisco's young quarterback Sunday when the 49ers travel to Arrowhead Stadium to take on the undefeated Kansas City Chiefs.
"We know it's going to be loud," Garoppolo said before Wednesday's practice. "I played there my rookie year (with New England) and it was rocking. So we know what we're in for."