Doug Marrone unsure of EJ Manuel fitness

Buffalo Bills head coach Doug Marrone has revealed that he is unsure whether quarterback EJ Manuel will be fit for the final game of the season.

Manuel sustained a knee injury in his side's win over the Jacksonville Jaguars - his third injury of the year - and as a result missed his side's win over the Miami Dolphins, but is still a doubt to face the New England Patriots.

"It's a process. We'll get him out there tomorrow and have a peek at him," Marrone told the club's official website.

The 23-year-old has thrown for 1,972 yards this season along with 11 touchdowns and nine interceptions.