Bills' Jackson out four weeks, Nelson out for season

As if the Buffalo Bills' 48-28 loss to the New York Jets in Week 1 was not enough, the team has been hit with multiple injuries. Wide receiver David Nelson and running back Fred Jackson were both forced from Sunday's game due to injuries.

After an MRI on Monday, Nelson has been ruled out for the season with a torn ACL, according to ESPN's Adam Schefter. Nelson, who posted a career-high 658 receiving yards last season, recorded two catches for 31 yards before leaving Sunday's game.

Jackson's MRI, on the other hand, provided a less conclusive outlook. The team will re-evaluate Jackson's injury over the next 7-10 days, as his MRI revealed no clear timetable for his return. The best case scenario for Jackson would be a Week 4 return, according to CBS Sports' Jason La Canfora.

Jackson, who missed the final six games last season with a fractured fibula, recorded 15 yards on six rushes before exiting Sunday's contest.

The Bills host the 0-1 Kansas City Chiefs in Week 2.