UPDATE #2: To clear a spot on the 40-man roster for right-hander Preston Claiborne, the Yankees have designated left-handed reliever Cody Eppley for assignment, reports Mark Feinsand of the New York Daily News.
Eppley appeared in just two games the first week of the season before he was optioned back to Triple-A, where he's found success in the early going.
Claiborne, 25, owns a 3.48 ERA and 10 strikeouts in 10⅓ innings at Scranton/Wilkes-Barre this season. As he's not a member of the 40-man roster, the Yankees will have to designate another player for assignment to make room.
Chamberlain's DL stint will be retroactive to April 28, according to USA Today. The move was somewhat unexpected as David Robertson was the New York relief pitcher that looked banged up Wednesday night.
Chamberlain, 27, has made ten appearances this season for the Yankees and has collected one save. He has a 3.86 ERA, but has an unusually high walk rate coupled with lower-than-normal strikeout numbers. That has helped contribute to a poor 1.714 WHIP. Whether those poor numbers have anything to do with the injury is up for debate.
The Brewers have a number of relief pitchers who have been performing well in Triple-A. Juan Cedeno, Sam Demel, and Mark Montgomery have all pitched between 10-13 innings while giving up one or two runs and maintaining a WHIP at 1.10 or below. Montgomery was rated the Yankees eighth best prospect prior to 2013 by John Sickels.
The Yankees have suffered heavily from injury woes this season. Currently, the Bronx Bombers have Chamberlain, Mark Teixeira, Alex Rodriguez, Derek Jeter, Curtis Granderson, Kevin Youkilis, Ivan Nova, Michael Pineda, Francisco Cervelli and Cesar Cabral all on the DL.