Compton, Walsleben in doubt for 'cross World Championships

Until two weeks ago, she was arguably the USA's best chance for a medal at the UCI Cyclo-cross World Championships this weekend, but with leg cramps still plaguing her and nearly two weeks off the bike, Katie Compton may not even be able to finish Sunday's elite women's race.

Compton was the UCI rankings and World Cup leader after her most successful season to date until the Roubaix World Cup when she failed to start after the cramps surfaced. It is a problem she's struggled with in recent years, and her husband Mark Legg said it usually takes two to three weeks to clear up.