Catcher Travis d'Arnaud attempted to throw on Saturday, but felt shoulder discomfort and had to stop, manager Terry Collins told reporters.
It was d'Arnaud's first time trying to throw since being placed on the disabled list on April 25, and Collins called the attempt "pretty discouraging."
Assistant GM John Ricco said the exact time it takes d'Arnaud to come back is still up in the air, ESPN New York's Adam Rubin reports.
"He described it as much less than what he originally felt," Ricco said of d'Arnaud's pain, according to Rubin. "But, still, his instructions were that if he's feeling anything in there to stop and then he'll wait a little bit longer. I'm not sure yet what time frame they're going to wait."
D'Arnaud was hitting .196 with a .288 OBP in 13 games before landing on the DL.
Previous Reports and Reaction
D'Arnaud was hitting, but not throwing, while rehabbing in Port St. Lucie, Terry Collins said Thursday, May 5.
He was put on the disabled list with a rotator cuff strain April 25 >> Click here to read more
"It's very unfortunate," d'Arnaud told reporters at the time of the injury. "But, it's all part of the game. People get hurt."
Triple-A C Rene Rivera was added to the 25-man roster to replace d'Arnaud.
April 26: I'm starting to feel bad for d'Arnaud, who seems to always be injured or returning from injury. In the last few years, he's torn ligaments in his knee, he had a herniated disc, a broken foot, all sorts of bruises, a hyperextended left elbow and now he's dealing with a rotator cuff issue. "D'Arnaud is almost out of new body parts to injure," Maggie Wiggin wrote on Twitter, and she's right. He started slow this season, now this. Hopefully, like last year, he'll rehab, get right and return on fire...