Alberto Contador has agreed to extend his contract with Tinkoff-Saxo until the end of the 2016 season.
The Spaniard is considered one of the greatest road cyclists of all time and has six overall Grand Tour victories to his name, including winning last season's Vuelta a Espana.
Contador is also a two-time victor at the Tour de France, triumphing at cycling's most prestigious event in 2007 and 2009.
The 32-year-old was the winner at the Tour in 2010, but was later stripped of his victory in 2012 having failed a drugs test - Andy Schleck subsequently named the victor.
Speaking on his deal that runs until the end of 2016, Contador told the team's official website: "For me it was something very important.
"I knew I could not wait much more because if I had to choose another option it should have been done much in advance, in order to adequately prepare the team.
"We have been thoroughly assessing all aspects and in Tinkoff-Saxo we have a group that can fully guarantee the challenge of the Grand Tours.
"It is true that it was important for 2016 to have these guarantees and for that reason I am very happy to have closed the deal.
"It is already five years that I have been working with [team manager] Bjarne Riis and the possibility to continue for another year is satisfying."
Contador, who will take part in the Tirreno-Adriatico this week, has set his sights on a Tour de France and Giro d'Italia double this season.