GENEVA -- Cycling revisited its scandal-scarred recent history again Thursday when the Court of Arbitration for Sport found a Tour de France winner guilty of doping for the second time this week.
German Jan Ullrich, 38, the 1997 champion, was stripped of his third-place finish in the 2005 race for "intensive involvement" in blood doping linked to the Operation Puerto case. He also was banned from the sport for two years.
Because Ullrich retired in disgrace after the Spanish doping investigation emerged in 2006, his latest shame lacked the impact of Alberto Contador's defeat at sports' highest court Monday.
Contador was stripped of his third Tour victory after CAS rejected his explanation that eating contaminated meat caused his positive tests for clenbuterol in the final days of the 2010 race.
Seven-time Tour winner Lance Armstrong will compete in 70.3-mile triathlons and a full 140.6-mile one to try to qualify for the sport's world championship.
Armstrong, 40, who retired from professional cycling in February 2011 to focus on his Livestrong cancer charity, will make his professional return to triathlon at the Ironman Panama 70.3 race Sunday, according to a press release issued by Livestrong.
British rider Mark Cavendish won the fifth stage of the Tour of Qatar while Tom Boonen closed in on the overall victory. Boonen retained a 31-second lead over Tyler Farrar going into the final stage today.
Third allegation surfaces: Authorities widened the investigation into former Wisconsin athletics official John Chadima after a third adult male came forward with allegations of sexual impropriety.
Beckman leads qualifying: Jack Beckman raced to the provisional No. 1 qualifying position in Funny Car in the season-opening NHRA Winternationals at Auto Club Raceway in Pomona, Calif.
Isner to play Federer: Roger Federer will face John Isner in the second singles match today when Switzerland takes on the United States in the first round of the Davis Cup in Fribourg, Switzerland.
