Yoenis Cespedes' tremendous potential 

April, 1, 2012
4/01/12
9:47
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Yoenis CespedesAP Photo/Itsuo InouyeYoenis Cespedes has already showed off his tremendous power this season.
Billy Beane is still dealing with the changes in time zones, working in a nap when he can. But any sleepiness he has felt hasn't dulled the first impression from Yoenis Cespedes' debut in the big leagues this week.