FILE - This is a Monday, Aug. 6, 2001 file photo of Ukraine's Zhanna Pintusevich-Block, left, beats Marion Jones to the line to win the women's 100-meter final during the World Track & Field Championships at Commonwealth Stadium in Edmonton, Alberta. Track and field officials are investigating former world champion sprinter Zhanna Block for doping and could seek to strip the Ukrainian of her medals in a BALCO steroid case that goes back a decade and centers on one of Marion Jones' biggest rivals, The Associated Press has learned. It's now up to the International Association of Athletics Federations or the Ukrainian federation to take any retroactive action against Zhanna Block, who was formerly known as Zhanna Pintusevich and won three world sprint titles in the late 1990s and early 2000s. (AP Photo/Amy Sancetta, File)
LONDON -- Track and field is investigating former world champion sprinter Zhanna Block for doping and could try to strip the Ukrainian of her medals in a BALCO steroid case that goes back a decade and centers on one of Marion Jones' biggest rivals.
EL VENDRELL, Spain -- Portuguese rider Manuel Cardoso won the fourth stage of the Volta of Catalunya on Thursday, while Alberto Contador retained the leader's jersey on the same day that cycling's governing body decided to appeal his doping acquittal.