(BEIJING, August 22) -- The Olympic Taekwondo competition will enter its fourth day on Saturday, with the Women's +67kg weight class and the Men's +80kg weight class set to take center stage.

　　Women's +67kg weight class

　　China's Chen Zhong, who is dubbed the "Taekwondo Queen", stands out from her competitors. The gold medallist at both Sydney 2000 and Athens 2004 in the +67 weight division is no doubt the most glamorous favorite.

　　Another favorite is Maria del Rosario Espinoza of Mexico, who was the world champion of the Middleweight 67-72kg division at the 2007 Beijing World Championships. Since there are a wider variety of weights in Olympic divisions, Espinoza has to face competitors that normally compete in a higher weight category. But as taekwondo is largely a skill-oriented sport, Espinoza still has a fair chance of winning a medal.

　　Despite possessing a good record on the international taekwondo scene, Athens 2004 bronze medallist Adriana Carmona Gutierrez of Venezuela has not competed much in recent years. However, the experienced fighter is still a dangerous opponent.

　　Karolina Kedzierska of Sweden, the reigning European champion, is another powerful contender.

　　Men's +80kg weight class

　　The reigning world heavyweight champion Daba Modibo Keita of Mali is considered as a hot favorite for a gold medal. He may win his country's first-ever Olympic medal, probably a gold medal.

　　But Keita will face a challenge from reigning European champion Alexandros Nikolaidis of Greece.

　　Chinese fighter Liu Xiaobo, the Asian champion, will pose another threat to Keita.

　　But Keita's real opponents are Mickael Borot of France and Cha Dong-min of the Republic of Korea, who respectively finished first and third at the World Qualifying Tournament, effectively sandwiching the second-placed Keita.