SANTA CLARA — Christian McCaffrey surfaced on the 49ers’ practice report Thursday after being limited by a calf issue in practice.

A red flag from the Red and Gold? That is the initial instinct, because …

McCaffrey’s debut on the report relives 49ers’ nightmares from a year ago, when he surprisingly got scratched from their season opener and missed two months with Achilles tendinitis .

McCaffrey, the 2023 NFL Offensive Player of the Year, has looked back in superstar form as a steady presence in practice from the spring through training camp. He went through his routine warmups on Thursday, complete with high-knee activation sprints, before the media window closed after roughly 20 minutes.

McCaffrey did not speak to the media Thursday during his usual scheduled time. The 49ers open

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