The Athletics say 27-year-old Sean Murphy passed away unexpectedly Monday.
The A’s are deeply saddened by the tragic loss of Sean Murphy. Our thoughts and prayers are with his family. pic.twitter.com/my5KSl0CpB— Oakland Athletics (@Athletics) April 26, 2016
Murphy graduated North Catholic High School in 2006.
He then went to Keystone College in La Plume, Lackawanna County.
"The A's are deeply saddened by the tragic loss of Sean Murphy," Billy Bean, the A's executive vice president of baseball operations, said in a statement. "Our thoughts and prayers are with his family and friends."
Murphy was selected by Oakland in the 2010 First-Year Player Draft.
He had a 32-32 record and 4.26 ERA in 105 games in six seasons in the A's farm system.
Murphy missed the entire 2015 season after undergoing Tommy John surgery on his right elbow.
No further details have been released.