Bass, who hasn't appeared in a game since he's been active, has returned as a member of the bullpen -- not the starting rotation, where he was earlier in the season, making 14 starts before heading to the DL on June 21.
"We've got to get him back on the horse," said Padres manager Bud Black.
There's a chance Bass could still start a game before the end of the regular season, though he's not too particular. He just wants to pitch -- period.
"As long as I'm here and helping out the team, I don't mind, bullpen, starting, whatever they need, I'll be ready," Bass said on Friday. "The extra time we gave my arm to recover really helped me. I'm so glad we gave the shoulder extra time to heal. Now I feel close to 100 percent."
Bass said it was important to him that he pitched again this season and worked hard toward that end in the rehabilitation process.
"There's a lot of competition coming up through the system and every day you have to prove yourself," he said. "I want the organization to know I'm healthy going into the offseason. Then I'll be good to go for Spring Training."
Bass, who was 2-7 with a 4.70 ERA in 16 games (14 starts) before the injury, has proved to himself that he can succeed at this level. There was the game at AT&T Park against the Giants on April 28 when he retired the first 17 hitters he faced before allowing two runs in the seventh inning.
"I know I can pitch at this level. I had some rough outings before I got hurt. But right now, I'm just happy to be back."