Gaber won at the 2004 Olympics Greco-Roman finals[3] with a gap of 12 points (12–1), having competed against Ramaz Nozadze of Georgia who won the silver and Mehmet Özal of Turkey, whom Gaber defeated in the semifinals with 11 points (11–0). Gaber won the second gold medal for Egypt in Greco-Roman wrestling, the other being from the 1928 Summer Olympics.[citation needed]
Gaber was Egypt's flagbearer at the Opening Ceremony for the 2008 Olympics in Beijing, although he failed to qualify for the quarter finals in Beijing. He won the silver medal at the 2012 Summer Olympics.[5]
In 2015, Gaber was a favorite to win another world gold at the 2016 Olympics with long time personal coach Jakob Panotas, until Gaber was suspended by United World Wrestling for two years in August 2015 due to a "whereabouts failure" during a miss call/location for his doping test.[6]