Brandon Aiyuk, Dee Ford leave 49ers practice with injuries

San Francisco 49ers defensive end Nick Bosa (97) gets a hand on defensive end Dee Ford (55) during drills at NFL football training camp Friday, Aug. 21, 2020, in Santa Clara, Calif. (Xavier Mascareñas/The Sacramento Bee via AP)

San Francisco 49ers' Brandon Aiyuk walks on the field during NFL football practice in Santa Clara, Calif., Tuesday, Aug. 18, 2020. (AP Photo/Jeff Chiu, Pool)