By Mark Gaughan
Wood, 27, is entering the fifth and final year of the rookie contract he signed in 2009. He was a first-round pick from Louisville. He is widely viewed as the most elite player the Bills have on their offensive line, and he's considered one of the Bills' team leaders.
Wood has rebounded from two serious injuries in his four pro seasons. He suffered a broken leg 10 games into his rookie season. He came back to play 14 games in 2010. Then he suffered a knee injury in Dallas in the ninth game of the 2011 season. He came back to play at a high level in 14 games last season.