SAN DIEGO -- Aaron Harang may not pitch for the Padres until after the All-Star break.

Harang is suffering from a right foot contusion dating back to his June 4 start. Padres manager Bud Black said that a return before the All-Star break is doubtful.

"It hurts when he runs," Black said. "He was OK to pitch [which he did on June 9 before going on the disabled list], but he wasn't OK to run. He was in a lot of pain running."

Harang is in a walking shoe now that has a wooden sole, designed to keep the foot from bending. The Padres' 6-foot-7 right-hander has been able to throw. He threw off the mound in the bullpen before Sunday's game.

"I've been throwing and keeping my arm strength up so I'm not going to be behind when it comes back to getting ready to pitch," Harang said.

Harang made one start after he injured his foot. The pain bothered him when he was running, and by the end of the game it was clear it was bothering him a lot.

Harang hasn't done any running since then, although he's been able to do some cardio work.

"[I'm] taking it a day at a time," Harang said. "I've been on the bike a couple of days in a row, for at least half an hour, and the last three days I've been on the elliptical trainer for at least 25 minutes and it hasn't bothered me."

Harang has noticed some improvement in everyday activities and the stress associated with walking.

"It seems to be doing all right," he said. "I get up in the middle of the night and if I don't have [the shoe] on, I can walk and go the bathroom or whatever and it's not a big deal."

Of course that midnight excursion is nothing like a 90-foot sprint out of the batter's box to first base.

And getting to that point will still take a number of steps. The next likely will be working out in a regular cleat.

"I'm still wearing the boot when I'm working out," Harang said.

Bass returns to Padres in long relief role

SAN DIEGO -- Pitcher Anthony Bass is back up in San Diego after the Padres recalled him from Double-A San Antonio on Sunday. In a corresponding roster move, the Padres optioned Evan Scribner to Triple-A Tucson.

Bass made a spot start for the Padres on June 13 in Colorado, pitching five innings and surrendering one run on five hits.

"I still have some things to work on, but overall I think I gave a good, positive impression in my first start here," said Bass, who added that he's thrilled to be back with the Padres.

But Bass won't be making a start for the Padres anytime soon. Padres manager Bud Black said the 23-year-old right-hander will make long relief appearances from the bullpen.

That was the role of Cory Luebke, but Luebke is starting Sunday, in place of Aaron Harang. It continues to look like Harang won't likely return from the disabled list until after the All-Star break, Black said.

Bass last pitched Thursday in San Antonio, where he threw two innings and gave up a run, making him an option in the bullpen for Sunday and beyond.

"I'm just going to treat it like I have been, just like I'm starting," Bass said. "Just go out there and throw strikes and get guys out. That's basically all I'm thinking about. Same game, same mindset: just throw strikes."

Bass' mindset was something that impressed the Padres in his Major League debut.

But at the same time, it wasn't something that surprised Black and the Padres' organization.

"I saw a good live arm, which we saw in Spring Training. Good hard slider, which we saw in Spring Training," Black said of Bass' June 13 start. "He pitched aggressive. He didn't seem to be phased by his Major League debut. You know, fielded his position. We saw a lot of those traits in Spring Training.

"I anticipated he was going to be fine, mentally and physically. You don't know how it's going to play out, but we were comfortable with Anthony and everything we thought he was going to bring to the table."

In two stints with the Padres, Scribner had a 7.07 ERA in 14 innings over 10 games. He allowed four runs on three hits in a 10-1 loss to the Braves on Saturday.