Steelers quarterback Ben Roethlisberger worked with the first-team offense when the team opened up training camp. Roethlisberger will serve a conditional six-game suspension, which has opened the door for backups Byron Leftwich and Dennis Dixon. Leftwich was primarily with the second-team skill players Saturday morning and worked some reps with the starting offensive line. Dixon followed Leftwich as Pittsburgh's third quarterback. "We're going to switch it every day," Steelers offensive coordinator Bruce Arians said. "But to start the first day, we put our guys out there like we ended up in the spring ... It's the first day and it's a long way to [the end of] training camp."