Los Angeles Chargers wide receiver Keenan Allen tries to break free from the grasp of Las Vegas Raiders safety Tre'von Moehrig in the first half at SoFi Stadium. Kirby Lee-USA TODAY Sports

Los Angeles was rolling on offense before veteran wide receiver Keenan Allen left the game in the first half with an apparent hamstring injury. Allen pulled up in the middle of running a route, grabbed him hamstring, and limped directly off the field and to the blue medical tent. After initially being announced as questionable to return, he was quickly downgraded to “out,” according to Bridget Condon of NFL Network.

Allen was a huge part of the Chargers’ early success, reeling in four catches for 66 yards in less than two quarters of football. Without Allen in the second half, Los Angeles’ offense grew stagnant, allowing the Raiders to claw their way back into the game.

In Allen’s absence, quarterback Justin Herbert had to really spread out his targets. Newly re-signed Mike Williams is the obvious answer to step up with Allen out, but the Las Vegas defense mobbed him for much of the remainder of the game, forcing Herbert to find other targets to pass to. The running backs and tight ends got heavily involved in the game with Gerald Everett, Tre’ McKitty, Austin Ekeler, Joshua Kelley, and Zander Horvath reeling in 14 receptions between the five of them.

It’s unknown how much time Allen is expected to miss, but, in the meantime, the Chargers will count on wideouts DeAndre Carter, Joshua Palmer, and Jalen Guyton to open up the field for Williams.

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