Sullivan is center of attention

The Associated Press

Vikings center John Sullivan is in his sixth year with the team, but he's already the old man of the line with all of the other changes taking place there in the offseason.

He'll arrive at training camp on Thursday in a much different place than he did in 2008 (when he was a rookie sixth-round draft pick and the popular Matt Birk held the job) or perhaps any other year. Besides having a firm hold on the center position, he also has a lucrative new contract, which he signed in December.

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