British cyclist David Millar has described Rabobank quitting cycling as "sickening".
Millar reacted to the news on Twitter, saying: "Dear Rabobank, you were part of the problem. How dare you walk away from your young clean guys who are part of the solution. Sickening."
The Garmin-Sharp rider served a two-year suspension after failing a drugs test in 2004, but now campaigns against doping.