Los Angeles Chargers wide receiver Keenan Allen suffered a hamstring injury in the second quarter of Sunday's season opener against the Las Vegas Raiders and was ruled out for the remainder of the game.
He caught four passes for 66 yards before exiting.
Allen has been fairly durable over his nine-year NFL career, appearing in at least 12 games in seven of those seasons. He hasn't missed a significant amount of time since tearing his ACL during Week 1 of the 2016 campaign.
The 30-year-old had three consecutive seasons of more than 1,000 receiving yards from 2017 to 2019.