According to the Bills' website, Parrish underwent surgery on a ligament in his thumb on Tuesday. Head coach Dick Jauron told reporters, "Roscoe we anticipate will be out for a good while. We're hoping four to six weeks in that range. That obviously sets us back a little bit. But it's probably as good as the news could be when we first heard about the injury."
The recovery time will push Parrish's return to after the team's bye and probably until the team's first meeting with the New England Patriots on November 9th.
The team also said it is unclear who will be replacing Parrish for his receiving duties and his punt return duties as well. It is likely that rookies James Hardy and Leodis McKelvin will be seeing more time, with Hardy filling in at receiver and McKelvin taking over return duties.
Parrish has compiled seven receptions for 60 yards this season and scored a touchdown in last week's game. He also has tallied 167 punt return yards, including a 63-yard touchdown return he had in week one.