Chargers RB Joshua Kelley is eager to make his return following a five-week absence. COSTA MESA – Chargers running back Joshua Kelley has had to sit and watch his team play from a distance the last five weeks because of an MCL injury suffered in Week 6. “It’s scary when you’re not playing football – something I’ve been doing for a long time,” Kelley said. “When you’re not doing it, you miss it.” Kelley had gotten off to the best start of his young career, averaging 4.5 yards per carry while serving a complimentary role behind starter Austin Ekeler. His…