The temperature isn’t the only thing heating up at Bills camp. As the first week of practice drew to a close, roster spot competitions have begun to intensify. One of the more interesting contests is within the group vying for the third wide receiver spot behind locks Sammy Watkins and Robert Woods. On the eve of training camp, there wasn’t much buzz surrounding journeyman receiver Greg Little and while he is far from a sure thing to secure the No. 3 on the depth chart, he has opened some eyes during this first week at St.