Tour de France champion Chris Froome has signed a contract extension with Team Sky until 2018.
The 30-year-old Briton joined Team Sky in 2010 and has achieved great success, earning a new three-year deal back in 2013 after claiming his first Tour de France victory.
Team Sky leader Froome became the first Brit to win the Tour twice last year and has now been rewarded with another deal.
The Kenya-born rider said: "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.
"Their values are my values and I am proud to ride for a team that has shown that you can win the biggest bike races in the world clean - 2015 was a fantastic year for me both professional 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 also took the King of the Mountains classification in France last year and has twice finished second in the Vuelta a Espana during his time at Team Sky, with two Tour of Oman titles among his other victories.
Team Sky team principal Dave Brailsford said: "Chris is not only one of the most talented and dedicated riders in the world, he is also a fantastic ambassador for the sport.
"Team Sky is proud to have him as our team leader. He is a winner and it is a great boost at the start of the new season that he has committed to stay with the Team to the end of 2018. He is hungry for more success and we will help him achieve it."