Chargers Tyrell Williams makes the pass complete during Friday's team practice. — Nelvin C. Cepeda
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The Chargers have set their initial 53-man roster of 2015.
It features four undrafted rookies: kicker Josh Lambo, inside linebacker Nick Dzubnar, wide receiver Tyrell Williams and tackle Tyreek Burwell. Kicker Nick Novak, tight end John Phillips and wide receiver Javontee Herndon were among the notable veterans released.