Source: Steelers, Troy Polamalu reach new Four-Year Extension

The Steelers and six-time Pro Bowl safety Troy Polamalu agreed to terms on a new four-year contract extension Saturday.

Terms were not immediately disclosed, but the deal will keep Polamalu in the Steel City through the 2014 season.

The four-time All-Pro selection said via Twitter on Saturday afternoon: “I am happy to say that I will retire a Pittsburgh Steeler!”

Last season, the 30-year-old USC product collected seven interceptions, 64 tackles and a sack.

Polamalu, the 2010 NFL Defensive Player of the Year, was in the final season of a five-year deal that would have paid him about $6.4 million this season. Troy was chosen by the Black & Gold, who traded up 15 spots, with the 16th pick out of Southern Cal in the 2003 draft.

The former Trojan standout was ranked #6 on NFL’s top 100 players of 2011 by the NFL Network.