Shonn Greene Injury: Updates on Jets Star's Head Injury

New York Jets running back Shonn Greene left Sunday's game against the Buffalo Bills with a head injury.

The Jets won the game 27-11 to improve to 5-3 on the season. 

When Greene left the game in the fourth quarter, his return was questionable, according to the Jets' official Twitter account.

With quarterback Mark Sanchez struggling to be effective in the passing game this season, Greene was counted on to lead a run-heavier Jets offense in the second half of the season.

Fantasy Impact

Greene has been very good the past few games for the Jets' ground attack, and fantasy owners have been happy that he's received a good amount of carries the past few weeks.

Coming into the Bills game, Greene had averaged about 89 yards rushing in the last three games.

Who's the Backup?

Without Greene in the starting lineup, veteran running back LaDainian Tomlinson and second-year back Joe McKnight will share the load.

Tomlinson will likely get most of the carries if Greene misses time.

Devastation Scale

If Greene cannot return for next Sunday's huge matchup against the AFC East rival New England Patriots then the Jets will be in trouble.

Sanchez has not played well this season and although the Patriots defense has been the worst against the pass this season, Sanchez could still struggle.

The lack of a dependable running back will hurt the balance of the Jets offense which has relied on the success of the ground game during their current three-game winning streak.

Timeline for Return

Greene did not return for the Jets.

Bleacher Report will keep you updated on the latest news of Greene's injury status and fantasy value for the coming weeks.