Right guard Dominick Puni and running back Corey Kiner sustained significant injuries in the first half of the 49ers’ preseason visit to the Raiders on Saturday.

LAS VEGAS -- The 49ers just beat the Raiders 22-19 in a preseason game. Here are the 49ers' grades for this performance. Keep in mind, the final score doesn't matter, but the individual performances do. This game was a great opportunity to evaluate the players.