Patriots nose tackle Vince Wilfork was not in attendance for Tuesday's organized team activity at Gillette Stadium. Wilfork, who has not been present since the start of the OTA's earlier this month, has not issued a comment on the matter. While the practices are voluntary, many players who are unhappy with their contracts steer clear of the OTA's as a way of expressing displeasure. Wilfork is entering the final year of the six-year deal, and is reportedly scheduled to earn a base salary of just over $2 million this season. For more Patriots' updates, check out our football blog, "It Is What It Is."