Calzaghe: Cleverly could be catapulted to the top if he beats Kovalev

By Scott Gilfoid: Former super middleweight champion Joe Calzaghe thinks all it'll take for fellow Welsh fighter WBO light heavyweight champion Nathan Cleverly (26-0, 12 KO's) to get to the top is for him to beat Sergey Kovalev (21-0-1, 19 KO's) this Saturday night in their fight on HBO at the Motorpoint Arena, Cardiff, Wales,