The Pittsburgh Pirates and New York Yankees have agreed to a trade that would send right-hander A.J. Burnett to Pittsburgh and were awaiting approval from the commissioner's office Friday, sources said. The Pirates will send right-handed reliever Diego Moreno and outfielder Exicardo Cayones to New York in return, sources said. Moreno, a 25-year-old from Venezuela, has split the last two seasons between Class A and Double-A minor league teams, while Cayones, who is 20, spent 2011 in Class A. The approval of the commissioner's office is needed because of the money involved. The Pirates will pay $13 million of the $31.1 million remaining on Burnett's contract, sources said. (Burnett is on a year-round contract and has already been paid $1.9 million in 2012.) Read more: http://espn.go.com/new-york/mlb/sto...ates-new-york-yankees-agree-trade-sources-say