SANTA CLARA — Christian McCaffrey had on his 49ers helmet, No. 23 jersey, white gloves, black sweatpants and white cleats. He looked ready for Friday’s practice and Sunday’s season opener.

Looks can be deceiving. Or encouraging.

Whether another calf issue will keep him out of another season opener is yet to be answered.

Coach Kyle Shanahan will address reporters after practice and provide McCaffrey’s official status for Sunday’s opener in Seattle against the Seahawks (1:05 p.m., FOX).

McCaffrey warmed up on his own as Friday’s walk-through practice began and did not join his fellow running backs for their initial drill during the media’s 10-minute access window.

McCaffrey did not appear hindered as he went through his typical activation exercises (start, stop, weave, backpeddle, ho

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