The Bills are unsure of how long OLB Shawne Merriman's ailing Achilles may hold him out. "We've got a bye week after (Sunday's game against the Giants)," HC Chan Gailey said Friday. "We'll see what happens." Already limited by a shoulder injury before his long troublesome Achilles acted up Thursday, Merriman has recorded only nine tackles and one sack in five games. He's off the radar in IDP leagues.