Mario's mystery malady 

July, 30, 2013
7/30/13
8:28
AM ET
Last offseason, DE Mario Williams was the big fish in the free agent pond, and the Buffalo Bills were able to lure him to Western New York with a six-year, $96 million contract. He played in all 16 games, and managed 10.5 sacks, but it wasn't the kind of dominant campaign that one would expect out of a player at that compensation level. Williams endured a wrist injury during the 2012 season -- having surgery on the joint during the bye week -- but the Bills never thought it was serious enough for the weekly injury report. And before the 2013 season has even kicked off, there's another problem bothering the N.C. State product.

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