The Nationals had a deal in place to acquire Zack Greinke, but the right-hander vetoed the deal, according to a baseball source. Instead, the Royals traded Greinke to the Brewers for prospects, a deal Greinke was willing to accept. No reason was given as to why Greinke turned down the deal with Washington, but he made it clear this past season that he would like to play for a team that wins on a consistent basis.