... to a four-year extension today. 

Raiola, who would have been entering the final year of his contract, has been a starter on the Lions' offensive line since his second year in the league.

Raiola is praised in the national media, yet often criticized by local fans. 

He is one of the few Matt Millen draft picks remaining on the team after the latest roster overhaul. 

The Lions' center is considered extremely smart and competitive, however, his lack of production in run-blocking have many fans questioning the signing.

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Read Complete Article at Bleacher Report - NFL