Federal prosecutors dropped their investigation of Lance Armstrong today, ending a nearly two-year effort aimed at determining whether the seven-time Tour de France winner and his teammates participated in a doping program.

Spanish Team Movistar captain Alejandro Valverde says his strong performance in the 2012 Santos Tour Down Under has relieved some of the pressure after returning from a two-year doping ban.

It was another jam-packed week with the cyclo-cross world championships, delays in the Contador case and of course Twitter.

Samuel Dumoulin of Team Cofidis powers to sprint victory in Grand Prix d'Ouverture La Marseillaise ahead of Marco Marcato (Team Vacansoleil) and Arthur Vichot of Team FDJ.

The Court of Arbitration for Sport says it plans to publish its verdict in Alberto Contador's doping case.

Social media is part of the marketing strategy in cycling. Who is doing it well?

Simon Gerrans won the Tour Down Under for the second time Sunday, giving newly formed Australian Team GreenEDGE its first victory in a UCI WorldTour event.

Team Lotto-Belisol's Andre Greipel sprints to stage victory in final stage of 2012 Santos Tour Down Under; Team GreenEdge's Simon Gerrans wins 2012 Santos Tour Down Under.

Spain's Alejandro Valverde of Team Movistar made an emotional return from a two-year doping ban by winning the fifth and longest stage of the 2012 Santos Tour Down Under earlier today, closing in on overall victory in the first event of the 2012 UCI WorldTour.

Team Movistar's Alejandro Valverde sprints to stage victory in comeback race; Team GreenEdge's Simon Gerrans takes overall lead in 2012 Santos Tour Down Under.

Team Katusha's Oscar Freire grabs stage victory in sprint as Team BMC Racing's Martin Kohler regains overall race lead in 2012 Santos Tour Down Under.

Team Lotto-Belisol's Andre Greipel powers to 2nd stage victory in 2012 Santos Tour Down Under and reclaims overall race lead.