Russ Ortiz came off the disabled list Monday and assumed a new role for the Giants: as a reliever. Ortiz began the season as the team's fifth starter, returned after being sidelined since May 2 with an irritated nerve in his pitching elbow. Hard-throwing Tim Lincecum took his spot in the rotation and has done plenty to keep his job. Manager Bruce Bochy plans to use Ortiz in a variety of roles in the bullpen. "It will be an adjustment," Bochy said. "We'll see how he bounces back." The Giants optioned Jonathan Sanchez to Triple-A Fresno so he can get more work. While the team initially said it was grooming Sanchez as a starter, he has worked only in relief this season and San Francisco plans to keep it that way through 2007.