This article appears in the June 28 issue of ESPN The Magazine.
Bobby Cox has long had a policy: If music is to be played in the Braves' clubhouse, it's going to be played through headphones. Hard to argue with the rules of one of baseball's all-time winningest managers, but when it comes to locker room tunage, he's in the minority -- and, considering his team's recent postseason slump, he might want to reconsider the stance. Just listen to what propelled the Dodgers from playoff outsiders to two straight NLCS appearances. "When I got here in 2008, music wasn't allowed in the clubhouse before games," says LA third baseman Casey Blake. "That changed with Manny. And we started to win."