From the video

Video: This Is What Mattered In Week 7
He told 49ers writers after the game, quote, "My leg just died on me." He expects to be fine, but at should we be starting running backs whose legs are just dying on I don't know, man. I I've had such a hard time with McCaffrey this year.
Mentioned at 8:24 – 8:52Captured by STACKED 7 hr after posting

STACKED’s take

Negative signalInjury

Durability concerns despite strong production; recurring injury updates

McCaffrey told 49ers writers after Week 7 that "My leg just died on me" and expects to be fine, but Mattek expresses serious concern about his durability and health trajectory for the rest of the season despite strong fantasy production (16-20 PPR points per game), noting difficulty in ranking him and determining future value due to recurring injury updates.

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