Bills' T.J. Sanders: Has practice window opened

Buffalo designated Sanders to return from IR on Tuesday, Alaina Getzenberg of ESPN.com reports.

Sanders hurt his knee in early October and was consequently placed on IR. He's already missed the required four games, but the Bills don't necessarily have to activate him right away. Sanders now has 21 days during which he can practice before he'd either need to be activated or deemed out for the remainder of the campaign.