‘Sunday’s game is the last under contract for key defenders Nate Clements, London Fletcher and Chris Kelsay. Each will draw interest on the open market, particularly Clements, who earned north of $7 million as Buffalo’s designated franchise player. After a slow start, he came on with a terrific last half of the season. He’s seeking to top Champ Bailey’s seven-year contract with Denver that is worth $63 million and came with a $18 million bonus two years ago.’