49ers down to two quarterbacks — Purdy and Jones — while cutting ties with two  The Mercury NewsSan Francisco 49ers final 53-man roster projection: Which new faces make the team?  ESPNWaiver wire tracker:Lions intend to cut wide receiver who was 2nd in the preseason in yards  Niners Nation49ers make flurry of roster moves  Yahoo Sports49ers waive QBs Tanner Mordecai, Carter Bradley in first wave of cuts  NBC Sports