Chris Froome has announced that he has extended his current Team Sky deal through to the end of 2018.
Froome, who won last year's Tour to go with his 2013 crown, announced the news during the team's training camp in Mallorca.
"Team Sky have been fundamental to my success to date, so it was a very easy decision to commit to the team until the end of 2018," Froome said in a statement.
"Their values are my values and I am proud to ride for a team that has shown you can win the biggest bike races in the world clean.
"2015 was a fantastic year for me both professionally and personally and this is a great kick-start to 2016. I am more motivated than I have ever been and I have got big targets for this Olympic year. I can't wait to start racing."
Froome has been with Sky since the team was founded in 2010.
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Great Britain secured silver and bronze medals on the final day of the UCI Track Cycling World Cup in Cambridge, New Zealand.
Chris Latham secured silver in the omnium, while the duo of Mark Stewart and Germain Burton took bronze in the madison.
Latham told British Cycling: "I've been knocking on the door waiting for that opportunity and sadly Ed (Clancy) was going to do this (omnium) but he's had a back injury so I've jumped in and took the opportunity.
"It's massive, a real big performance. First World Cup (of the season) and to get a silver, well happy with that, I'm delighted."
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Andre Greipel won Saturday's penultimate stage of the Tour of Britain as Edvald Boasson Hagen moved onto the verge of a second win in the event.
Greipel (Lotto-Soudal) won a sprint finish at the end of the 227.1-kilometres seventh stage from Fakenham to Ipswich by a narrow margin from Team Sky's Elia Viviani.
Boasson Hagen (MTN-Qhubeka), the winner of the 2009 Tour of Britain, was fifth on the stage to consolidate his 13-second overall advantage.
Woet Poels (Team Sky) is the Norwegian's nearest rival ahead of Sunday's final stage in central London, which is expected to end in a sprint.
Chris Froome's absence from the Road Cycling World Championships has been confirmed after Great Britain announced the team for Richmond.
Two-time Tour de France champion Froome withdrew from the Vuelta a Espana with a fractured bone in his foot which has ruled him out of the trip to the United States for the September 19 to 27 event.
Mark Cavendish, the 2011 world champion, and Geraint Thomas, the 2014 Commonwealth Games gold medallist, lead the men's road race squad, which has plenty of options. Lizzie Armitstead headlines the women's team.
British rider Chris Froome has been forced to abandon La Vuelta a Espana due to a fractured foot.
The Tour de France winner crashed on Wednesday, but did manage to complete the stage.
Froome had an x-ray on his injury, which confirmed the issue, forcing him to quit the race.
On Wednesday evening, Froome tweeted: "Knocked sideways into a barrier & stone wall today. Further scans in the morning but start unlikely as I can’t walk without crutches."
The Astana cycling team have apologised after their rider Vincenzo Nibali was expelled from the Vuelta A Espana after being towed by a team car.
Italian rider Nibali used the vehicle to help him get him back up with the peloton after suffering a crash, but was filmed by a camera taking a lift.
Astana wrote on their website, astanaproteam.kz: "Nibali called for a replacement water bottle and was filmed by television cameras in a race helicopter as Astana Pro Team director sportif Alexander Sheffer towed him for more than five seconds to rejoin the chasing group with around 20km to the finish. Nibali rejoined the main peloton with 10km to go.
"For this illegal assistance, race jury officials took the unusual and severe step to expel Nibali and Sheffer from the Vuelta a Espana and to remove the team's second vehicle from competition for two days.
"Astana Pro Team is sorry for the error, and apologises to the peloton and race organisers for the harm these televised images caused to professional cycling."
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