C.J. Spiller is keeping his spirits high even though the Bills running back's short- and long-term future in Buffalo is up in the air. Speaking on Monday for the first time since breaking his collarbone two weeks earlier, Spiller said it was too early to determine whether he can be cleared to play before the end of the season. ''I don't want to put a percentage on it,'' Spiller said. ''I'm not really worried about all that stuff,'' Spiller said. More...