Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Daniel Richard Duffy (born December 21, 1988) is a Major League Baseball pitcher for the Kansas City Royals. He is considered one of the top prospects in baseball. Duffy was drafted by the Kansas City Royals in the third round of the 2007 Major League Baseball Draft out of Cabrillo High School. Duffy briefly retired from baseball in March 2010 before deciding to return in July. Duffy made his Major League debut on May 18, 2011. He gave up two runs in four innings; he did not earn a decision in the 5-4 loss to Texas.