FOXBOROUGH, Mass. -- The New England Patriots announced that wide receiver Aaron Dobson is questionable for Monday night's game against the Buffalo Bills with a back injury, giving him a 50-50 chance to suit up.

With Dobson's addition to the injury report as a springboard, let's go deeper into the Patriots' wide receiver corps (with No. 1 option Julian Edelman sidelined due to a left foot injury):

Brandon LaFell has only 13 receptions and no touchdowns this season, but he could be in line to see more throws his way. AP Photo/Michael Dwyer

1. Brandon LaFell (6-3, 210) -- He's the team's top outside receiver and should be penciled in to play the majority of offensive snaps as a factor in every package. LaFell opened the season on the physically unable to perform list (left foot), but the team has quickly worked him back into the mix as he has averaged 56.5 snaps per game upon his return.

2. Danny Amendola (5-11, 190) -- He has found his niche as the No. 3 option in the attack, sometimes rising up to play in two-receiver packages but more often utilized in three-receiver sets. He has played 59.1 percent of the offensive snaps this season and that could increase with Julian Edelman out with a left foot injury, although he's not expected to pick up all of Edelman's snaps.

3. Keshawn Martin (5-11, 194) -- Acquired in a trade from the Texans on Sept. 17, he developed a quick rapport with quarterback Tom Brady as he was utilized as the No. 2 receiver Oct. 11 against Dallas. But he injured his hamstring the following week at Indianapolis and hasn't played since, missing four games. He said last week that he felt he was getting closer to a return.

4. Dobson (6-3, 205). The 2013 second-round draft choice is a top backup on the outside behind LaFell. He appeared to be building momentum after a strong performance against the Bills on Sept. 20 when he played a season-high 70 snaps. But in a reflection of how that momentum hasn't continued, Dobson has averaged 13 snaps per game over the next seven contests.

5. Chris Harper (5-11, 185) -- An undrafted rookie from Cal who flashed in the preseason, he was promoted from the practice squad on Nov. 17. He can line up at multiple spots and was an under-the-radar player in training camp who made a quick impression.

EXTRA POINT: Special teams captain Matthew Slater is listed as a wide receiver, and he would be a No. 6 emergency option used for the occasional deep passing play.