Digital Feature August 20, 2021 5:15 pm Kittle praises ‘freak of nature' James after joint practices Chargers safety Derwin James kept 49ers tight end George Kittle “on his toes” during joint practices in Costa Mesa, intercepting a Jimmy Garoppolo pass for a pick-6 in Friday’s scrimmage. 49ers videos 1:21 Can the 49ers keep both Aiyuk, Samuel? 3:57 Fourth-round draft pick Cowing excited to build chemistry with Purdy 6:45 Fourth-round draft pick Guerendo ready to learn from 49ers' backfield 1:25 Watch 49ers fourth-round draft pick Jacob Cowing's college highlights 5:28 Fourth-round draft pick Mustapha brings ‘tenacity' to 49ers' secondary