Osi Umenyiora, DE
Could the Patriots turn to the dark side? Umenyiora helped terrorize the Patriots in Super Bowl XLVI and XLII as a part of a fearsome Giants defensive front that was able to get pressure on Tom Brady. As an unrestricted free agent, he's now facing the probability of leaving New York because of limited cap space.
The 10-year veteran, who has tallied 75 sacks in his career and has forced 32 fumbles, comes with some risk. He's 31 and now more likely a situational pass rusher wherever he lands. And wherever he lands will have to dish out some serious bucks to get him.