FOXBORO -- The Patriots were inside Gillette Stadium on the game-day turf for practice on Thursday, and left tackle Nate Solder was back on the field with his teammates.
Solder missed Wednesday's session with a concussion. He had been limited in practice last week with a concussion but made it back to the field in time to play against the Dolphins on Sunday. In the fourth quarter of New England's loss in Miami, however, Solder appeared to suffer his second concussion in as many weeks when he was kneed in the head by Dolphins defensive end Cameron Wake and did not return.
By NFL rule, Solder had to pass a concussion test before being allowed to practice. He will have to pass another before he is cleared for Sunday's game in Baltimore.
Against the Dolphins, left guard Logan Mankins filled in for Solder at left tackle and reserve offensive lineman Josh Kline filled in at guard.
Josh Boyce was the lone Patriot not spotted during the shells-and-sweats session on Thursday. He did not practice on Wednesday because of an ankle injury.