SANTA CLARA, Calif. (AP) — Jerick McKinnon had a steep learning curve when he arrived in San Francisco as the highly paid featured back for the 49ers.
After four seasons as mostly a backup in Minnesota, McKinnon was one of San Francisco’s big-ticket additions in free agency this offseason and took some time to learn coach Kyle Shanahan’s complex new offense.
“When I first got here, I was lost. I was…
