Bordelandehall in Magdeburg plays host tonight to the first WBO super middle title defense of champion Robert Stieglitz, who faces Rueben Eduardo Acosta while undefeated featherweights Ina Menzer and Ramona Kuehne engage in a triple world title bout. Stieglitz, 36-2 (22), came into possession of the WBO bauble by forcing Karoly Balzsay’s corner to throw…