49ers stock watch: Who’s up and down after preseason win over Chiefs?

KANSAS CITY, MO - AUGUST 11: Running back Joe Williams #32 of the San Francisco 49ers carries the ball during the preseason game against the Kansas City Chiefs at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MO - AUGUST 11: Running back Joe Williams #32 of the San Francisco 49ers carries the ball during the preseason game against the Kansas City Chiefs at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images) /
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KANSAS CITY, MO – AUGUST 11: Cornerback Rashard Robinson #33 of the San Francisco 49ers carries the ball after making an interception during the preseason game against the Kansas City Chiefs at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MO – AUGUST 11: Cornerback Rashard Robinson #33 of the San Francisco 49ers carries the ball after making an interception during the preseason game against the Kansas City Chiefs at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images) /

Cornerback Rashard Robinson

Second-year corner Rashard Robinson didn’t get off to a great start on Friday night in Kansas City.

On the very first snap of the game, Chiefs quarterback Alex Smith found wide receiver Tyreek Hill for a 32-yard gain, whom Robinson was covering. Robinson then missed a would-be tackle on running back Spencer Ware, which resulted in a nine-yard gain. Kansas City scored shortly thereafter.

Early in the second quarter, Robinson was nearly victimized again by wide receiver Chris Conley, who had the cornerback beat for a would-be touchdown, only to see it nullified after committing an offensive pass-interference penalty.

Robinson made up for it somewhat later on the drive, picking off backup QB Tyler Bray to end the drive. But Bray overthrew the ball right to Robinson, so make of that what you wish.

Robinson is slated to be San Francisco’s top cornerback this season. Watching the game back, one of the issues standing out was his inability to jam faster receivers at the line of scrimmage.

This is something Robinson will certainly try to address in practice, but it wasn’t a good start for a top defensive back expected to operate in a lot of one-on-one coverage this season.

Stock: Down