Tejay Van Garderen pulled out of the Tour de France during Wednesday's 161km 17th stage from Digne-les-Bains to Pra Loup after suffering from headaches.
The 26-year-old American had been sitting third in the overall standings at 3min 32sec back from race leader Chris Froome.
But only 60km into the first Alpine stage of the race, Van Garderen started to struggle and lost touch with the peloton.
The BMC team leader, second to Froome in last month's Criterium du Dauphine, dropped two minutes behind but his teammates helped him back up to the peloton.
But a burst of speed from Alberto Contador, who was fifth overall, saw Van Garderen drop again and, with 70km still to ride, he climbed off his bike.
It means Spaniard Alejandro Valverde moves up into a podium position behind second-placed Nairo Quintana with Contador just 19 seconds behind.
Source: AFP
GMT 16:18 2018 Tuesday ,04 December
Germany's Dressen undergoes knee surgeryGMT 09:41 2018 Tuesday ,04 December
Leverkusen frustrated in sodden NurembergGMT 15:13 2018 Saturday ,27 October
Russia's Medvedeva in 7th place after fall at Skate CanadaGMT 17:37 2018 Thursday ,04 October
Liverpool sunk by late Lorenzo Insigne strikeGMT 09:54 2018 Wednesday ,24 January
Gymnastics champ Raisman rips Olympic CommitteeGMT 08:22 2018 Tuesday ,23 January
Russian speed skater An 'banned from Olympics for doping'GMT 08:52 2018 Friday ,19 January
Stokes available for England selection despite chargeGMT 09:06 2018 Wednesday ,17 January
Injury-hit figure skating champ Hanyu resumes trainingMaintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©
Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©
Send your comments
Your comment as a visitor