In November 2017, Maxim Vylegzhanin was disqualified for doping offenses, as a result Kryukov lost its silver medal in the Team sprint awarded at the 2014 Winter Olympics. On 22 December 2017 Kriukov as well was found to have committed violations against the anti-doping rule at the 2014 Olympics. He was ordered to return his Olympic silver medal and barred from all future Olympic games. In January 2018, he successfully appealed against the lifetime ban as well as decision to strip his medal from Sochi Olympics at the court of arbitration for sport. His gold medal was reinstated.