The Detroit Lions' training camp is in full swing, and injuries have unfortunately begun to pile up. The Lions quickly proceeded with the signing of veteran RB Raheem Blackshear on Tuesday. RB competition may lead to Sione Vaki's exit in DetroitWith Blackshear now in the mix, Vaki will have more training camp competition upon his return. In fact, Saylors has already earned Campbell's praise in training camp. Campbell said of Saylors, "He's a smart guy, he's conscientious.