49ers' Christian McCaffrey on his injury and mindset: My mentality is I'm playing'

"I hate not playing. But I look at it as a chess move and something that hopefully we can benefit from the rest of the season."

"McCaffrey has been a limited participant in practice since August 4, making it difficult to gauge his readiness due to ongoing calf and Achilles issues."

"At issue is the fact the tendon doesn't get a good blood supply, making it challenging for athletes to recover from injuries like McCaffrey's."

"Athletes with Achilles tendonitis are at a higher risk for ruptured tendons later, particularly in older athletes, but can occur in younger ones as well."

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