Alex Grinch cited a lack of “video” when talking about USC’s struggles in stopping Sione Vaki as a pass-catcher out of the backfield vs. Utah.

Specifically, Grinch was asked about the Trojans’ inability to stop Vaki on wheel routes. Vaki, who began the season as a defensive player but has transitioned to an offensive role, scored from a wheel route on Utah’s opening drive vs. the Trojans.

“Third play of the game, you’re trying to be aggressive. There’s no justification for doing it other than it’s a play that hasn’t shown up on video,” Grinch said. “We were playing the percentages … They catch you in a call and put some bigger bodies on the field and give them credit. That’s two plays in the ball game and you’re sick to your stomach when they happen.”

Here’s a replay of Vaki’s touchdown on the third play of the game:

Vaki finished the game with 5 catches for 149 yards and 2 touchdowns in the 34-32 road win for the Utes.

It’s worth noting that while Vaki’s role in Utah’s offense is relatively new, this particularly play has shown up before. Utah quarterback Bryson Barnes overthrew Vaki on a similar concept the week prior against Cal.

It’s been a season full of struggles for Grinch and USC’s defense. The Trojans’ defense ranks 91st nationally in yards per play allowed. They still have to face two elite offenses in Oregon and Washington during the month of November as well.

USC will try to snap its two-game losing streak on Saturday vs. Cal.