After Wednesday's practice, the Patriots said the quarterback's absence was not injury-related. A report later in the day on Comcast SportsNet said Brady had X-rays to check for a separated left shoulder and was told he was "all set."
Patriots spokesman Stacey James said Thursday, "If there was an injury then it would be on the injury report."
ESPN.com reported Thursday that Brady also would miss Thursday's practice but that the injury isn't severe enough to keep him out of Sunday's game against the Buffalo Bills.
Brady was not in the Patriots' locker-room Thursday during the open media period. Neither he nor coach Bill Belichick has commented on the reports.