signed Shawne Merriman to a new contract with hopes the three-time Pro Bowl linebacker can help bolster their pass rush, the NFL team said Saturday. The Bills originally claimed the former San Diego Charger off waivers in early November but an Achilles injury prevented Merriman from playing a single down for Buffalo. The team did not disclose terms of the deal but the Buffalo News reported the contract is for two years and worth a total of $10.5 million.