Cuban outfielder Yoenis Cespedes has agreed to a four-year, $36 million deal with the Oakland Athletics. The Miami Marlins also bid $36 million for Cespedes. But their offer was over six years, not four, one source familiar with the Cespedes negotiations told ESPN.com's Jayson Stark. The Marlins weren't interested in a deal shorter than six years, an executive who spoke with the team told ESPN.com. Read more:http://espn.go.com/mlb/story/_/id/7...rees-4-year-36-million-deal-oakland-athletics