Troy made five tackles (four solo), two quarterback hurries, one tackle for loss, one pass defended.
Oh yea he had a sack and a forced fumble:
With the Steelers down four with over three minutes left in the game Polamalu came off the left side of the Ravens line, unblocked (no idea how) and strip sacked Joe Flacco where LaMarr Woodley recovered the fumble and returned it to the Ravens nine yard line and three plays later Ben Roethlisberger and the Steelers offense scored the game winning points.
That is what great players do.
Mike Tomlin had this to say in the Steelers release (link above):
“Troy’s a great player,” said Coach Mike Tomlin. “A lot of guys would go in there and sack the quarterback. He sees the game a little differently, that’s what makes him special. He got the ball out, unfortunately, we weren’t able to get the ball in the end zone, but our offense finished the job for us.”
Troy joins James Harrison who won the AFC Defensive Player of the Week after week two, Lawrence Timmons who won the award after week six and Emmanuel Sanders won the AFC Special Teams Player of the Week after week seven.