Adam Dunn trekked 14 seasons and 2,001 games just to get to the postseason. But when his one and only playoff chance arrived Tuesday, he never got off the bench, and afterward he said he will retire. The Oakland Athletics designated hitter, 34, told ESPN's Pedro Gomez that he has played his final game. Read more http://espn.go.com/mlb/playoffs/201...land-athletics-retiring-14-big-league-seasons