David Robertson (groin) threw on flat ground Wednesday. Robertson reported feeling "good" after the workout. He is aiming to return from his Grade 1 groin strain as soon as he is eligible -- which is April 22. Shawn Kelley is serving as the Yankees' primary closer for now.

David Robertson will be placed on the disabled list with a Grade 1 groin strain.

David Robertson converted his first save chance in the post-Mariano Rivera era by pitching a perfect ninth Thursday against the Astros. It was Robertson's ninth career save. The entire Yankees bullpen was stellar tonight, striking out five in 3 1/3 perfect innings.

Yankees managing general partner Hal Steinbrenner said Wednesday that David Robertson will be the team's closer in 2014. That has been the natural assumption for a while now, but the Yankees have been reluctant to officially name Robertson as Mariano Rivera's successor until now. "We are going to continue to look, but no doubt we have already spent a lot of money this offseason," said Steinbrenner. "I have a lot of confidence in Robertson and so does Joe [Girardi]. Robertson is going to be our closer, and I believe he will do a good job." Robertson has posted a 1.91 ERA and 12.0 K/9 over the past three seasons and has made strides with his control, so he has the potential to be a top-10 closer in fantasy leagues right away.

Yankees avoided arbitration with RHP David Robertson by agreeing to a one-year, $5.215 million contract. It was Robertson's final year of arbitration eligibility. After setting up for the great Mariano Rivera the last few years, Robertson is slated to take over as the Yankees' closer in 2014.

Yankees GM Brian Cashman said Tuesday that he hasn't settled on David Robertson as the 2014 closer. Mariano Rivera has retired, and replacing him could prove to be a tough task for the Yankees. "I'm not sure if Robertson is capable yet. He's never done that before," Cashman said at the GM Meetings in Florida. "I think he's earned the right to take a shot at it, and he very well may be the guy. But we're not anointing him the guy."

David Robertson, not Mariano Rivera, was called upon to protect a one-run lead in Friday's victory against the Astros. As he often does, Robertson came through the inning unscathed, striking out one in the process. It was a passing of the torch moment for the Yankees, as Robertson is slated to take over as the Yankees primary closer next season with the departure of Mariano Rivera. He now owns a 5-1 record, 2.07 ERA, 1.06 WHIP and 77/18 K/BB ratio over 65 1/3 innings while converting three of his five save chances.

David Robertson struggled in his second appearance back Thursday, giving up three runs in the eighth against the Orioles. Considering that Robertson just missed five days with a sore shoulder, it's pretty stunning that the Yankees used him for a second straight day Thursday. As poorly as it worked out, we wonder if we'll be hearing more about Robertson's shoulder in future days.

David Robertson (shoulder) expects to be available Wednesday. Robertson threw a bullpen session on Tuesday afternoon and reported no issues with his right shoulder. He was diagnosed last week with right shoulder tendinitis.

David Robertson (shoulder) might not be available for the series against the Orioles. Robertson was scheduled to play catch Monday, and he could be available soon based on how that went. The setup man is dealing with tendinitis in his shoulder, though it's considered to be a minor issue.