NEW YORK -- The New York Yankees will need some length from their starting pitchers in the coming days because their bullpen is currently decimated by injuries.
Right-handed setup man David Robertson likely will be out the next five to six days after an MRI revealed tendinitis in his shoulder, manager Joe Girardi said following his team's 12-8 loss to the Boston Red Sox on Friday night.
Meanwhile, lefty specialist Boone Logan will undergo an MRI on Saturday morning after he left the game with biceps discomfort.
"It's pretty much the worst timing," Robertson said. "It stinks. I want to be out there."
Robertson, 28, suffered the injury while pitching for a second consecutive night Thursday.
"After I came out of the game, I was a little sore," he said. "I came in this morning to get some treatment and decided to get an MRI. I have some inflammation [in my shoulder] right now, which is causing me a little discomfort."
Robertson said he hopes he'll be able to play catch in two to three days, then throw a side session before he's ready to pitch in a game.
"This is something where I felt like if I tried to pitch through it, I was afraid I might do something stupid, overthrow a baseball and injure myself," Robertson said. "So I'm just going to take a day or two and let my body heal itself and be ready to go."
Logan, 29, suffered his injury on his second or third pitch to Mike Napoli in the seventh inning of Friday night's game. Napoli ended up hitting a game-tying grand slam off Logan later in the at-bat.
"I've been going through soreness all year long starting in the spring," Logan said. "I just felt a little tightness kick in. I wasn't gonna do anything about it at the time. I was just trying to finish the at-bat and try to get out of that inning, and it didn't happen."
Logan, 5-2 with a 3.26 ERA in 38 2/3 innings of relief, exited after surrendering a single to the next batter, Daniel Nava.
On Friday night, the Yankees were without closer Mariano Rivera (used the previous three days), Robertson (used the previous two days) and right-hander Shawn Kelley (triceps inflammation). They were ahead 8-3 in the seventh inning, but their bullpen wound up surrendering nine runs on 10 hits over the final three frames. Phil Hughes (1/3 inning, three hits, four earned runs), Preston Claiborne (2/3 inning, three hits, three earned runs) and Joba Chamberlain (2/3 inning, one earned run, three walks) were all extremely ineffective, but Girardi likely will have no choice but to turn to them in relief.
"We're scoring a lot of runs. The starters are giving us their best. It's our job to lock it down, and with that kind of lead in the later innings, it's bulls--- for it to happen," Logan said.
Robertson, who is expected to take over as closer for the retiring Rivera next season, is 4-1 with a 1.85 ERA. In 61 games, he's struck out 70 over 58 1/3 innings.