The 49ers' $265 million franchise quarterback looked sharp in his brief appearance, completing 5 of 7 passes for 66 yards and a passer rating of 100.9, while also adding a short run for one yard. It was a solid warmup before the regular season, with little else needed from the team's offensive leader.
One bright spot was Purdy's connection with rookie wide receiver Ricky Pearsall, who caught three passes for 42 yards, continuing the chemistry the two developed during training camp.
After the opening drive, Mac Jones took over at quarterback for San Francisco.
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Unfortunately, the 49ers suffered several first-half injuries. Starting right guard Dominick Puni exited with a knee injury and was ruled out. Running backs Patrick Taylor (shoulder) and Corey Kiner (ankle) also left the game and were ruled out.
At halftime, the Raiders led the 49ers 13-10 in the preseason contest.