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Sullivan biding time behind Birk

John Sullivan (Tom Dahlin/Viking Update)

John Sullivan is learning from one of the best centers in the league as a rookie, a similar situation to what Matt Birk experienced in his rookie season. Will the similarities continue over the coming years?

When you have a 53-man roster and only 22 starters, there are 31 players on the roster that have varying levels on contribution to an NFL team. Some are guys who are just happy to have made a roster. Some are promising youngsters that a franchise hopes will be part of their building process to a championship somewhere down the line. Still others are aging veterans that have a small window of... Recommended Stories