'There's also the financial issue. Mathis was due to make $5.5 million this season, and while he may not be able to command that type of salary, he won't come cheap. According to Spotrac.com, the Bills have a little over $7 million in space for 2015, so they could make it work. However, if Mathis is hoping for a multi-year contract, things could get complicated. Buffalo has a lot of expiring contracts and can't afford to commit any more money to their 2016 salary cap than it already has. Does Mathis think the Bills are enough of a contender to take a one-year deal? Are the Bills willing to pay him enough to go for it in 2015?'