The Braves and Phillies will square off in a doubleheader Saturday at Citizens Bank Park.
After combining for seven innings in Thursday's 6-1 loss to the Astros, the Philadelphia bullpen is in desperate need of a rest heading into Saturday. Right-hander Roberto Hernandez will start the first leg for the Phillies, while Triple-A Lehigh Valley right-hander Sean O'Sullivan is slated to pitch the nightcap.
Kyle Kendrick's eight-inning performance in Friday's 4-2 loss will help the Phillies' cause, but Hernandez has struggled to go deep into games during his 2014 campaign. He's pitched more than six innings in just two outings this season, and twice Hernandez has been knocked out of a game before reaching the fifth inning.
Meanwhile, O'Sullivan has a 4.31 ERA in 15 starts this season for Lehigh Valley. He made three starts last season with the Padres and is 9-15 with a 6.02 ERA in 37 career starts from 2009-13.
"He's one of the more experienced guys down there," Phillies manager Ryne Sandberg said. "He's got some experience starting in the big leagues."
For the Braves, right-hander Ervin Santana, who is 5-5 with a 4.15 ERA this year, will start the first leg. Right-hander David Hale will start the nightcap.
Hale is typically a long-relief option out of the bullpen for Atlanta manager Fredi Gonzalez. On Saturday, Hale will make his start since April 26, when he allowed one run over eight innings against the Reds.
Phillies: Ruiz heads to the seven-day DL
Phillies catcher Carlos Ruiz got hit in the head with a pitch in the 11th inning Thursday, but finished the 14-inning victory over the Marlins at Citizens Bank Park.
Manager Ryne Sandberg indicated early Friday afternoon that Ruiz was OK, although he added Ruiz's head was being monitored. But the Phillies announced an hour before Friday's 4-2 loss to the Braves that Ruiz had been placed on the seven-day concussion disabled list.
They selected the contract of Triple-A Lehigh Valley catcher Koyie Hill to take Ruiz's spot on the 25-man roster. They designated Double-A outfielder Zach Collier for assignment to make room for Hill on the 40-man roster.
Backup catcher Wil Nieves already is on the DL with a strained right quadriceps, leaving the Phillies with Cameron Rupp and Hill to catch while Ruiz and Nieves recover.
Hill, 35, was hitting .240 with nine doubles, one triple, three home runs and 17 RBIs in 45 games for Lehigh Valley.
Collier, 23, appeared in 40 games for Reading this season, hitting .228 with five doubles, two triples and one home run.
Braves: Schlosser called up from Triple-A
Major League Baseball allows teams to call up a 26th man for doubleheaders, so the Braves will recall right-hander Gus Schlosser from Triple-A Gwinnett.
"We'll use him whenever we need to use him," Braves manager Fredi Gonzalez. "If the first game goes 15 innings, 18 innings, we'll use him there."
The 25-year-old made the Opening Day roster, but was sent back down after posting a 4.91 ERA in 11 innings. Schlosser went 4-3 with a 4.39 ERA in 10 starts for Gwinnett.
"He went down there and started. So he could throw a lot of pitches for us," Gonzalez said. "But if we have two great starts, I hope I don't even have to use him."
• Braves outfielder Jason Heyward has reached base safely via hit or walk in 42 of his last 45 games.
• The Braves are 9-10 over their last 19 games and 13-17 over their last 30 games.
• Phillies manager Ryne Sandberg said right-hander Mike Adams, who is on the disabled list with inflammation in his right shoulder, has not been cleared to begin his throwing program yet, but when he does, he will rehab in Clearwater, Fla.
• Elias Sports Bureau said Chase Utley's 14th inning walk-off homer Thursday matched the latest inning a Phillies player has hit a walk-off homer over the past 53 seasons. Other Phillies players with 14th inning walk-off homers since 1962 are John Kruk (April 20, 1993, vs. Padres) and Ryan Howard (July 25, 2007, vs. Nationals).