Daniel Eric Rosenbaum (born October 10, 1987) is an American professional baseball pitcher in the Boston Red Sox' organization.

Rosenbaum attended Loveland High School in Loveland, Ohio,[1] and Xavier University, where he played college baseball for the Xavier Musketeers baseball team. The Washington Nationals selected Rosenbaum in the 22nd round of the 2009 MLB Draft. The Colorado Rockies selected Rosenbaum from the Nationals in the 2012 Rule 5 draft.[2] The Rockies returned Rosenbaum to the Nationals before Opening Day in 2013.[3]

Rosenbaum underwent Tommy John surgery to repair a torn ulnar collateral ligament of the elbow in May 2014.[4] He was cleared to resume throwing in November.[5] During the 2014-15 offseason, the Nationals traded Rosenbaum to the Boston Red Sox for Dan Butler.[6][7]

  • Career statistics and player information from
  • Loveland High's Danny Rosenbaum scheduled to throw against Reds on Friday. Loveland Magazine (March 13, 2013). Retrieved on July 14, 2013.
  • Rosenbaum in Rockies' mix for middle relief | Rockies.com: News. Mlb.mlb.com (March 16, 2013). Retrieved on July 14, 2013.
  • Rockies return Rule 5 pick Danny Rosenbaum to Nationals. Washington Times (March 24, 2013). Retrieved on July 14, 2013.
  • Nats' prospect Rosenbaum has Tommy John. Comcast SportsNet Washington. Retrieved on January 14, 2015.
  • Nats lefty prospect cleared to throw after Tommy John. Comcast SportsNet Washington. Retrieved on January 14, 2015.
  • Red Sox acquire minor-league lefty Rosenbaum. Retrieved on January 14, 2015.
  • Former Xavier pitcher Danny Rosenbaum traded to Red Sox (January 14, 2015). Retrieved on January 14, 2015.
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