Boxing - Lopez completes Cuba's golden hat-trick

By Alan Baldwin RIO DE JANEIRO (Reuters) - World champion Arlen Lopez beat Uzbekistan's Bektemir Melikuziev on a unanimous points decision to win the Olympic middleweight title on Saturday, Cuba's third gold medal of the boxing tournament. Azerbaijan's Kamran Shakhsuvarly and Mexico's Misael Rodriguez, his country's first medallist in the division since 1968, took the bronze medals as losing semi-finalists. Fighting half an hour after compatriot Robeisy Ramirez had won bantamweight gold, Lopez e