The San Francisco 49ers and Las Vegas Raiders conducted joint practices in Las Vegas under hot conditions, with temperatures reaching 98 degrees. The 49ers' offense performed strongly, highlighted by Brock Purdy's notable plays and his developing rapport with receivers Brandon Aiyuk and Jauan Jennings, who are currently recovering from injuries. George Kittle also stood out, catching multiple passes and demonstrating a strong on- and off-field connection with Purdy, which was acknowledged by head coach Kyle Shanahan. Running back Christian McCaffrey was active and effective throughout the session. Conversely, the 49ers' defense struggled to gain traction against the Raiders' offensive line, with a depleted defensive line due to absences including Nick Bosa, who was sidelined with soreness. The practice remained disciplined, with no fights or one-on-one offensive line versus defensive line confrontations, partly due to interventions by coaches Pete Carroll and Trent Williams. Overall, the session showcased the 49ers' offensive potential while exposing vulnerabilities in their defense ahead of the upcoming season.