A's get Lester, Gomes from Red Sox for Cespedes, Sports
Jon Lester traded to Athletics
The Oakland a's Just Shook up Baseball and Are Going All-in to Win This Year's World Series
AP source: A's acquire Lester, Gomes for Cespedes
Jon Lester - Wikipedia
Red Sox trade John Lackey to Cardinals for Joe Kelly, Allen Craig
Jon Lester wins Oakland debut - The Boston Globe
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Oakland A's' Billy Beane talks wheeling and dealing and his team's playoff hopes - ESPN
Oakland A's: What If Yoenis Cespedes Is Magic?, News, Scores, Highlights, Stats, and Rumors