New running back Christian McCaffrey active for 49ers
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SANTA CLARA, Calif. (AP) — Running back Christian McCaffrey is active for the San Francisco 49ers just two days after arriving in town following a trade from Carolina. The Niners dealt four draft picks for McCaffrey on Thursday night and he joined the Niners the following day after a cross-country flight and passing a physical. He got out on the field to watch the end of practice on Friday and then underwent a crash course on learning the new offense. He learned enough to be active against the Kansas City Chiefs when he is expected to have a limited package of plays he can run.