Mijain Lopez Nunez of Cuba won his second straight Olympic gold medal Monday in the 120-kilogram class of Greco-Roman wrestling. Nunez, a four-time world champion, got the best of Riza Kayaalp of Turkey in the semifinals. That was a rematch of the most recent world championship final, which Kayaalp won. In the gold medal bout, Nunez defeated Heiki Nabi of Estonia and then said he might return to try for a third consecutive gold in Rio de Janeiro. \"I am considering it,\" Nunez said. \"I would like to. But I am 30 and it becomes more complicated to stay at the top.\" Kayaalp and Johan Euren of Sweden won bronze medals in the 120-kilogram class. Alan Khugaev of Russia won the 84-kilogram class with a victory over Egypt\'s Karam Mohamed Gaber Ebrahim and world champion Omid HajI Noroozi of Iran was the winner of the 60-kilogram class. Both Iran and Russia have won two of the Greco-Roman wrestling gold medals awarded over the first two days of competition.