and Iljo Keisse. Individual glory Domestiques sometimes get a chance to win stages in stage racing. Typically this would be late in a stage race. Domestiques whose standings do not threaten the leaders will often not be chased if they break away. Domestiques can progress to more senior roles if they show ability. For example, at the 2012 Tour de France Tejay van Garderen of BMC Racing Team began the tour as a domestique for 2011 winner Cadel Evans but later became team leader due to Evans struggling and eventually won the young rider classification. Chris Froome of Team Sky also won a stage while riding in support of winner Bradley Wiggins, and became team leader the following year, where he eventually won the general classification. Assigned team roles vary substantially from race to race based on a variety of factors, including the course, the team members riding the race, their current physical condition, or even commercial factors. For instance, Stuart O'Grady, a veteran professional rider riding for Leopard-Trek, served as a domestique supporting Carlos Sastre in the 2008 Tour de France. By contrast, in the 2008 Herald Sun Tour, a much less-prominent race in which Sastre (and other high-profile members of the team) did not ride, the Australian O'Grady acted as team leader and was assisted by his teammates to win two stages and the general classification. Evolution of the domestique The UCI points system changed the relationship between domestiques and leaders. Previously, domestiques were not concerned with their finishing order. However, riders now get points for their finish position. This presses domestiques to also consider their own performance in addition to their leader's. The 1990s saw the introduction of radio communication, allowing managers to assign tasks to domestiques wherever they are on the road. The influence of radios on race tactics is a topic of discussion amongst the cycling community, with some arguing that the introduction of radios in the 1990s has devalued the tactical knowledge of individual riders and has led to less exciting racing. In September 2009, the Union Cycliste Internationale (UCI), the governing body of pro cycling, voted to phase in a ban on the use of team radios in men's elite road racing. Finally radio found its undisputed place in peloton for good and, as some races with imposed radio ban proved, the ban changed nothing in racing tactics. In track cycling In track