Klöden to quit?

Andreas Klöden (Astana)

Andreas Klöden (Astana) (Image credit: Cyclingnews.com)

Astana's Andreas Klöden says he's thinking of leaving professional cycling, following a difficult few months for his Switzerland-registered ProTour squad. Astana's troubles began with the non-negative sample of the German's now former teammate Matthias Kessler, followed more recently by lead rider Alexander Vinokourov's non-negative at the Tour de France, which saw the whole squad asked to leave the event.