The Athletics made roster changes before their game against the Nationals, selecting right-hander Geoff Hartlieb to replace injured reliever Justin Sterner, who is dealing with a knee injury. First baseman Joey Meneses was designated for assignment after a lackluster performance of 3-for-20 in nine games. Meneses, a late bloomer who had a strong Triple-A season, can either be traded or placed on waivers. Hartlieb, previously DFAed, returns to provide bullpen depth following a taxing game.
