LONDON -- Two top Russian weightlifters have withdrawn from the Olympics for medical reasons.
Dmitry Klokov and Khadzhimurat Akkaev were medal favorites in the men's 105-kilogram category.
Russia's sports minister on Saturday said Klokov pulled out for unspecified medical reasons. The Russian weightlifting federation said Akkaev, the 2011 world champion in the weight class, hasn't recovered from back surgery.
The Russian weightlifting team has yet to win a gold medal in London despite fielding one of the strongest lineups.
Gold medal favorite Oxana Slivenko withdrew from the women's 69-kilogram category because of an injury just before the start of the Games. On Friday, two Russian silver medalists matched the results of the winners but missed the gold because of higher body weight.
Also withdrawing was Ukrainian weightlifter Artem Ivanov, who failed to show for his weigh-in and won't take part in the competition. No reason was given.
Organizers said in a brief statement Saturday that Ivanov "withdrew from competition." He was to have competed in the 94-kilogram class.
Ivanov placed second behind Ilya Ilyin of Kazakhstan in last year's world championship. Ilyin is the defending Olympic champion and is undefeated in international competition.
Information from The Associated Press was used in this report.