Top Prospects: Robbie Erlin, LHP, Padres

SAN DIEGO -- To be clear, Padres manager Bud Black never likes calling a player into his office to tell him he's on his way back to the Minor Leagues.

It was different with pitcher Thad Weber, who was sent back to Triple-A Tucson on Wednesday after he tossed 4 2/3 scoreless innings of relief, saving the bullpen in a 6-3 loss to the Brewers on Tuesday.

"He's got a good perspective on it," Black said. "He understands why he was here in the first place, and why he was sent back."

Needing a fresh reliever for the series finale against the Brewers on Wednesday, the Padres selected left-hander Robbie Erlin from Tucson. Erlin was in uniform before Wednesday's game.

"I'm excited to be here," Erlin said.

Erlin, 22, and right-handed pitcher Joe Wieland were obtained from the Rangers at the 2011 Trade Deadline for reliever Mike Adams.

Erlin was 2-0 with a 4.73 ERA in three starts for Tucson. He pitched five innings in his last start on April 19. He walked seven in 13 1/3 innings with 10 strikeouts and 18 hits allowed. He hasn't allowed more than two earned runs in each of his last two starts.

Erlin said he's done a better job of pitching inside to right-handed batters, which can be a tricky issue for a left-handed pitcher who doesn't rely on plus-velocity.

"You just try to be aggressive with it," Erlin said. "You can't be tentative. You've got to trust it."

If and when Erlin makes an appearance, he'll be the 14th pitcher used by the Padres this season.

Forsythe moved to 60-day disabled list

2013 Outlook: Forsythe to benefit at smaller Petco

SAN DIEGO -- The Padres added left-handed pitcher Robbie Erlin to their 40-man roster on Wednesday, meaning they needed a corresponding move to make room.

The team opted to move infielder Logan Forsythe - who has plantar fasciitis in his right foot - from the 15-day disabled list to the 60-day disabled list.

However, as manager Bud Black said, that move -- retroactive to March 22 -- doesn't equate to a setback for Forsythe, who still wears a protective boot to keep his foot in place as it heals.

"If it does, it might only be impacted by a few days, based on what I've heard from our medical staff," Black said.

That means the soonest Forsythe could return would be May 22, though he has a long way to go first.

"He's got to do Spring Training again," Black said.

That means once Forsythe is cleared for baseball-related activities, he'll likely go to the team's complex in Arizona for extended spring trraining before he can begin a Minor League rehabilitation stint.

Padres 'pen proving mighty

SAN DIEGO -- Entering Wednesday, the Padres ranked 29th in the big leagues in average innings pitched by starting pitchers (4.96 innings). Despite that heavy workload, the bullpen is thriving.

Over the past eight games, the bullpen has a 0.98 ERA in 27 2/3 innings, including 7 1/3 scoreless innings in Tuesday's loss to the Brewers. Better still, the bullpen has not allowed a run in the last 16 2/3 innings.

Overall, the Padres bullpen has a 3.10 ERA with 62 strikeouts in 29 games this season. Their 72 2/3 innings pitched entering play Wednesday tied them for third in the Major Leagues with the Pirates behind the Astros (83.2) and Blue Jays (74.1).

Short hops

• Outfielder Kyle Blanks remains available, but hasn't played since running headlong into the wall and making a nice catch in left field in San Francisco on Sunday. Blanks had four stitches put in over his left eyelid and the area around his eye is bruised. Blanks said his left shoulder was still a little sore, but wouldn't keep him from playing.