Universum Box Promotion puts on a bill tonight headlined by the WBA Heavyweight title fight between champion Ruslan Chagaev, 26-0-1 (20), and challenger Carl Davis Drumond, 26-0 (20), of Costa Rica, at Stadhalle in Rostock, Germany. Chief support sees WBA Light Welter Champ Andreas Kotelnik, 30-3-1 (13), defending against undefeated Argentine body punching terror Marcos…