49ers vs. Chiefs: 5 things we learned from Niners’ first preseason game

KANSAS CITY, MO - AUGUST 11: Quarterback Brian Hoyer #2 of the San Francisco 49ers passes 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: Quarterback Brian Hoyer #2 of the San Francisco 49ers passes 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)

No. 5: Cornerback Is Going to Be an Issue

The Chiefs targeted No. 1 cornerback Rashard Robinson early and often during the game, and Robinson didn’t exactly have the best showing.

Robinson was burned by Kansas City wide receiver Tyreek Hill on the first snap of the game, letting Hill haul in a 32-yard catch.

You can see this matchup at the top of the screen:

Robinson gave up a few more plays before hauling in an interception off backup quarterback Tyler Bray later in the quarter.

By no means is it the end of the world for Robinson. Young defensive backs often struggle transitioning to the NFL, and the second-year pro is going through some learning curves here. Yet the Niners are going to operate a lot of Cover 3 defenses, calling for plenty of one-on-one coverage from their corners.

If Robinson is merely OK this season, and the remaining crop isn’t particularly deep or effective, San Francisco’s secondary could be in for a long season.

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