mon Contador announced decision to stay on at Tinkoff - arena in 2016 . The two - time tour de France winner will retire at the end of that year . Contador is one of only six riders to have won all three grand tours .
Alberto Contador announced decision to stay on at Tinkoff-Saxo in 2016 . The two-time Tour de France winner will retire at the end of that year . Contador is one of only six riders to have won all three grand tours .