Chiefs head to San Francisco, ready to shake off some rust

FILE - Kansas City Chiefs quarterback Patrick Mahomes (15) passes during drills at the team's NFL football training camp in St. Joseph, Mo., in this Saturday, July 31, 2021, file photo. With only a few practices remaining before breaking training camp, the Kansas City Chiefs take a business trip on Saturday to visit the San Francisco 49ers. For quarterback Patrick Mahomes, the results in this first preseason outing matter less than the process. “You always like a score, but at the end of the day, I think if the communication, the procedures of in and out of the huddle with so many new guys, especially on that offensive line, I think that would be a win for me just throughout this first game,” Mahomes said.(AP Photo/Ed Zurga, File)

FILE - Kansas City Chiefs center Creed Humphrey, right, and offensive lineman Wyatt Miller, left, participate in a drill during the NFL football team's minicamp in Kansas City, Mo., in this Wednesday, June 16, 2021, file photo. With only a few practices remaining before breaking training camp, the Kansas City Chiefs take a business trip on Saturday to visit the San Francisco 49ers. For quarterback Patrick Mahomes, the results in this first preseason outing matter less than the process. “You always like a score, but at the end of the day, I think if the communication, the procedures of in and out of the huddle with so many new guys, especially on that offensive line, I think that would be a win for me just throughout this first game,” Mahomes said. (AP Photo/Charlie Riedel, File)