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5/25/2014 3:30 P.M. ET

Phils recall De Fratus from Triple-A Lehigh Valley

PHILADELPHIA -- Right-hander Justin De Fratus rejoined the Phillies on Sunday, when the club placed Cody Asche on the 15-day disabled list with a strained left hamstring.

De Fratus had a 7.20 ERA in four appearances before being optioned to Triple-A Lehigh Valley on April 13. He posted a 4.50 ERA in 15 appearances with the IronPigs.

Why recall De Fratus?

"We wanted to go to 13 pitchers anyway," Phillies general manager Ruben Amaro Jr. said.

The Phillies had been short a man in the bullpen since they placed right-hander Luis Garcia on the 15-day disabled list on Friday with a strained forearm.

"We could have gone with some other guys," Amaro said. "He's got the experience, right now."

Right-hander Ken Giles remains on the minds of Phillies fans. He is 2-0 with a 1.12 ERA in six appearances since a promotion from Double-A Reading. He has allowed three hits, one run, five walks and has struck out five in eight innings.

"Giles is doing well," Amaro said. "He's still a guy that we'll continue to monitor. When he's ready, we'll bring him."

Ailing hamstring puts Asche on 15-day DL

PHILADELPHIA -- Phillies third baseman Cody Asche only shrugged on Sunday morning when asked if his injured left hamstring had improved.

It had not.

The Phillies announced a couple of hours later they had placed Asche on the 15-day disabled list with a strained left hamstring. They recalled right-hander Justin De Fratus from Triple-A Lehigh Valley to take his place on the roster because they had been a man short in the bullpen since Friday.

Asche underwent an MRI, which showed tendinitis in the hamstring. He tried jogging before the game against the Dodgers, but without positive results.

"We just decided to be real cautious with him," Phillies general manager Ruben Amaro Jr. said. "We could stretch this out, but he had some testing this morning and really wasn't much improved. So we just decided to put him on the DL, rather than risk having any long-term issues with him."

Asche had not played since Thursday, so he could be activated as early as June 7. In the short term, it will be Cesar Hernandez or Reid Brignac at third base. Hernandez started his third consecutive game at third on Sunday.

But Triple-A third baseman Maikel Franco would make sense. After a terribly slow start, he is hitting .301 with eight doubles, four home runs, 15 RBIs and an .869 OPS in 26 games since late April.

"It's a possibility," Amaro said. "We'll see whether it's the right thing for us and the right thing for him. Right now, he's got an upper respiratory problem. He's not playing today. We'll kick it around."

Asche said on Saturday he had been playing through discomfort for about six or seven games. The training staff had been treating the hamstring, but it did not respond like it had hoped.

Asche had been playing well offensively this month, hitting .317 with five doubles, three home runs, 12 RBIs and a .956 OPS in 17 games.

"After seeing [the MRI] and seeing how he didn't really respond to the testing he did today, why would we mess around with it?" Amaro said.

Phillies will re-evaluate Lee's status

PHILADELPHIA -- Phillies left-hander Cliff Lee is on the disabled list with a strained left elbow, but he will be re-evaluated on Monday.

If he has improved, he could begin throwing again.

"We'll see," said Phillies general manager Ruben Amaro Jr. "We said we would look to see if he could throw in a week. If he can, then he can. If he can't, then we'll push him back."

Revere collects a rare double

PHILADELPHIA -- Ben Revere achieved a rarity on Saturday afternoon against the Dodgers.

He doubled.

His first-inning double was his 40th hit of the season. Elias Sports Bureau found no player had collected 39 or more hits without a double in a season since 1990, when three players needed at least 39 hits before collecting a double: Houston's Eric Yelding (72 hits before his first double), Milwaukee's Edgar Diaz (47) and Montreal's Tim Raines (45).

Todd Zolecki is a reporter for MLB.com. He writes a blog, called The Zo Zone. This story was not subject to the approval of Major League Baseball or its clubs.