Raiola, 36, was selected by the Lions in the second round of the 2001 draft and is the team's longest-tenured current player. He signed a one-year, $1.5 million contract with the Lions prior to this season.
Since becoming Detroit's starting center in 2002, Raiola has missed only five games. He missed four games with an injury in 2008 and was suspended for the Lions' regular-season finale after appearing to stomp on an opponent's leg.
Detroit drafted another center, Travis Swanson, in the third round in 2014. Swanson started at center when Raiola was suspended and also started four games at right guard.
- Phil Watson