Wilfork (left arm) leaves field

FOXBOROUGH, Mass. -- Patriots defensive tackle Vince Wilfork took himself off the field midway through the second quarter and received attention from trainers on the sideline before being fitted with a sleeve over his left arm.

Wilfork got up slowly after a 2-yard run by Ray Rice and pulled himself from the game. On the very next play, with the Ravens facing 2nd and goal, tight end Dennis Pitta caught a 6-yard touchdown pass from Joe Flacco as Baltimore tied the game at 10 with 6:11 to play in the first half.

[Update: Wilfork returned to the field on the first offensive snap of the Ravens next drive.]