PITTSBURGH (AP) -- The Pittsburgh Steelers and safety Troy Polamalu have agreed to a contract extension through 2014.
Terms were not immediately disclosed. Polamalu was scheduled to make $6.4 million this season.
Polamalu took to his Twitter account to announce the day, tweeting "I am happy to say that I will retire a Pittsburgh Steeler!"
The perennial Pro Bowler was the NFL Defensive Player of the Year last season, finishing with seven interceptions, 64 combined tackles and a sack. He was slowed by a strained Achilles in the playoffs and has admitted he was not 100 percent in the loss to Green Bay in the Super Bowl.
Polamalu is the fourth Steeler defensive starter to get a new contract from the club, joining cornerback Ike Taylor and linebackers LaMarr Woodley and Lawrence Timmons.