Los Angeles Chargers wideout Keenan Allen left with an apparent hamstring injury he suffered while running a route in the second quarter.By video, Allen suffered the injury at the top of his route with under 7 minutes in the second quarter.#Chargers wideout Keenan Allen is reportedly questionable to return with a hamstring strain he suffered on this play⏩https://t.co/4wBlW9w7RL pic.twitter.com/EAOIeJ9ew9— Sports Injury Central (@SICscore) September 11, 2022 Allen was deemed questionable to return, but our Pro Football Docs do not expect him back against the Raiders.The 30-year-old wide receiver had 4 catches for 66 yards before exiting. Josh Palmer and DeAndre Carter could see more targets with Allen out.Los Angeles faces the Chiefs in Kansas City on Thursday night.