49ers and Raiders End Preseason with 24-24 Tie, Key Injuries Raise Concerns

San Francisco's defensive depth tested as two key players sustain knee injuries; Brock Purdy shows promise despite interception.

49ers' defensive ends Leonard Floyd and Yetur Gross-Matos suffer knee injuries in the first quarter.
Brock Purdy completes 9 of 12 passes for 96 yards but throws a red-zone interception.
49ers' special teams shine with a 93-yard kick return touchdown by rookie Isaac Guerendo.
Brandon Aiyuk and Trent Williams remain in contract disputes, missing the game.
49ers' next game is the regular-season opener against the New York Jets on Sept. 9.