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4/13/2014 2:36 P.M. ET

De Fratus optioned as Phils call up fresh bullpen arm

PHILADELPHIA -- One of the reasons the Phillies optioned right-hander Justin De Fratus to Triple-A Lehigh Valley on Sunday is because they needed a fresh arm in the bullpen following a busy weekend.

They recalled right-hander Luis Garcia to take his place. Garcia's stint could be short. The Phillies are expected to activate right-hander Mike Adams from the 15-day disabled list Monday, and Garcia seems to be the most likely candidate to make room for him on the 25-man roster.

But De Fratus also carried a 7.20 ERA following four appearances. He allowed five hits, four runs, one walk, two home runs and struck out two in five innings. The Phillies are struggling to find competent right-handers in the bullpen. Early this season, manager Ryne Sandberg has leaned heavily on left-handers Jake Diekman, Antonio Bastardo and Mario Hollands, routinely pitching them in high-leverage situations.

"I'm not doing my job, straight up," De Fratus said. "I'm just not doing my job. I've got to get the ball down. That's all it is. It's not walking people. I'm trying to challenge people and I'm getting beat. That's it. I've just got to get that fastball down, and that's what I'm going to work on. It really is a simple solution.

"I don't want it, but I need the time to straighten some things out, because something has gone awry in the last couple years that's not allowing me to get the ball down. I've got to find out what it is."

Said Phillies general manager Ruben Amaro Jr.: "He just needs to be more consistent. We know he can pitch in the big leagues, but he's going to have to be consistent to help us."

Adams, who is recovering from right shoulder surgery, allowed two hits, one run and struck out one in one inning Saturday in a rehab appearance with Triple-A.

"Overall it went all right," Adams said. "Health-wise it was OK. Today I feel fine. That's the most important thing. It's their decision [about Monday]. I'm going to play catch today and we'll talk after that."

Jackie Day to feature statue, Negro Leagues player

PHILADELPHIA -- Though it was postponed a day by rain, the Phillies have several things planned to honor Jackie Robinson on Wednesday at Citizens Bank Park.

"As far as diversity is concerned, there's nobody who has had more of an impact on the game than Jackie Robinson," Phillies general manager Ruben Amaro Jr. said. "His perseverance, his guts. Not just for African-American players, but Latin-American players and players of color. Unfortunately, those were the times we lived in then, but we'll never live them again."

Negro Leagues player Mahlon Duckett, who played for the Philadelphia Stars, will be honored on the field, receiving a gift from players. The Tuskegee Airmen will serve as honor guard.

Other events or acknowledgments include:

• "I Am 42" video will be played on PhanaVision.

• Video of the making of the Jackie Robinson statue, which will be displayed in Ashburn Alley.

• Jackie Robinson statue will be located by the left-field gate on Ashburn Alley.

• Meet and greet with Duckett in the Hall of Fame Club by the Jackie Robinson display. Duckett will be available from 5:45-6:15 p.m. ET.

Burnett to have ultrasound on sore groin

PHILADELPHIA -- A.J. Burnett should know Monday if he will make Wednesday's scheduled start against the Braves.

Burnett will have an ultrasound in the morning to see if he just has a sore groin or possibly something worse.

"I feel good, but I want my mind to be 100 percent," the veteran said about the ultrasound. "Let's just hope it's not a hernia or something. That's what I'm worried about. Tomorrow will give me peace of mind. But as far as physically, today was a good day today. A lot better."

Burnett left Friday's start against the Marlins in the fifth inning because of soreness in his right groin. He threw a bullpen session Sunday morning at Citizens Bank Park and said it went better than expected, although he twice felt a pull in the muscle while throwing out of the stretch.

"It went away right after that," Burnett said. "I'm feeling good enough to throw."

If Burnett misses a start or more, the Phillies could use Triple-A right-hander David Buchanan, who pitched just one inning Sunday, which keeps him fresh should he be needed Wednesday. Buchanan is not on the 40-man roster, but the Phils made room on the roster Saturday when they outrighted right-hander Brad Lincoln to Lehigh Valley.

Worth noting

• Phillies left-hander Cole Hamels pitched well in a rehab start Saturday with Class A Clearwater. He is scheduled to make one more rehab start Thursday. He could rejoin the Phillies' rotation on April 22 in Los Angeles. "He threw great," Amaro said. "It's possible [Thursday is his last rehab start]. We'll see how he feels after that one."

Tony Gwynn Jr. made his third consecutive start in center field as Ben Revere nurses sore ribs, although the Phillies have liked the way Gwynn has played in Revere's absence. "Tender," Amaro said of Revere's ribs. "But I think he's OK to play. Tony is playing good. [Sandberg] is playing the hot hand, I guess."

Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.