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Profar suffered an apparent head injury and was carted off the field in Thursday's game against the Giants, John Shea of the San Francisco Chronicle reports.

Profar was involved in a collision with teammate CJ Abrams, which resulted in Profar getting kneed in the head. Profar tried to walk off the field under his own power but collapsed. Though there is no official diagnosis, Profar could be in line for an extended absence.

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