Keenan Allen player props, betting insights, and odds | Chargers vs. Raiders on Week 4

Here are some key stats and trends to know before placing any bets on Keenan Allen’s player props for Sunday’s game, which starts at 4:05 PM ET on CBS. AFC West foes meet in Week 4 when Allen’s Los Angeles Chargers (1-2) play the Las Vegas Raiders (1-2) at So…