Prosecutors Monday opened an investigation into the motorcycle accident that left Greek sprinters Kostas Kenteris and Katerina Thanou hospitalized shortly after they missed drug tests. The IOC granted them another extension, this time to Wednesday, on a disciplinary hearing.

U.S. sprinter Torri Edwards appeared for a hearing on her doping case that will determine whether the reigning 100-meter world champion competes in Athens. No ruling was expected before this evening.

Venus Williams and Chanda Rubin lost 7-5, 1-6, 6-3 to eighth-seeded Li Ting and Sun Tian Tian of China in their doubles opener. Williams won the doubles gold in Sydney with her sister Serena, who pulled out of the Athens Olympics last week, citing a knee injury.

The U.S. basketball team, stunned in the opener by Puerto Rico, tries to rebound against Greece. ... Phelps continues his medal quest at the pool, racing in the 200-meter butterfly, where he's the world record holder, and on the American 800-meter freestyle relay. ... The U.S. women's gymnasts go for their first team gold since Atlanta in 1996.

Mostly sunny with a high of 84 degrees and north winds blowing at 38 mph at the Olympic complex. The notorious Meltemi winds postponed rowing events until Tuesday and claimed the opening three races of sailing's 49er class.