Chargers' Justin Jackson (groin) doubtful for Week 5

Los Angeles Chargers running back Justin Jackson is considered doubtful to play Sunday in the team's Week 5 game against the Cleveland Browns.

What It Means:

Jackson didn't participate in practice Thursday, making an absence on Sunday a likelihood. And now that he's been listed as doubtful, it's all but a certainty. Joshua Kelley, a popular sleeper pick last year, hasn't been activated yet this season. Should Jackson sit as expected, Kelley would dress for the game, according to head coach Brandon Staley.

In 4 games this season, Jackson has 10 carries for 22 yards and 6 catches on 6 targets with 27 yards.