BASEL (Switzerland) (AFP) Novak Djokovic clinched the most comprehensive victory of his career on Thursday when he humiliated Czech journeyman Jan Hernych 6-0, 6-0 to reach the Swiss Indoors quarter-finals. The 52-minute doule-bagel was the first for the Serb at the elite ATP level, bettering his 6-1, 6-0 win over Argentinas David Nalbandian in the Queens Club semi-finals in 2008, a rout which took four minutes less. Djokovic also defeated Britains Andy Murray by the same scoreline in Miami two years ago. Ive never had one (double bagel) before. Its really tough to analyse the match, said the world number four. I played enough to win, I had great service games and on his serve I never felt pressure. He didnt put up much of an effort. Anytime you win like this the opponent has to be playing really poorly. I know the crowd wanted him to win the last game, but I felt the need to win every game. Theres no room for sympathy, we are professionals. Second seed Djokovic saved three break points in the first set before stepping on the gas against a 59h-ranked opponent who had claimed his first victory since the US Open in the first round here. Hernychs cause was not helped by committing 40 errors in the loss. Djokovic improved to 68-18 on the season and now faces Swiss sixth seed Stanislas Wawrinka who defeated Finn Jarkko Nieminen in three sets. Ill try to go all the way. Since the Cincinnati final (against Roger Federer) Ive been playing really well. Im getting better and better, added Djokovic, the winner of last months Beijing title. Evgeny Korolev will line up against Roger Federer in the last eight after defeating Jeremy Chardy 6-4, 7-6 (7/1), a day after the Frenchman fired 24 aces to humble James Blake. Meanwhile, compatriot and good friend Marco Chiudinelli kept national hopes high as he beat qualifying compatriot Michael Lammer 2-6, 6-3, 6-3, firing eight aces and breaking three times. The result marks the second quarter-final in six weeks for the Swiss after a similar performance in Bangkok. Chiudinelli improved to 9-11 this season and will face Frances Richard Gasquet. Croatia fourth seed Marin Cilic maintained his pace in his chase for one of two places open in the season-ending ATP finals, taking out Serb Victor Troicki 7-6 (9/7), 6-7 (8/10), 7-6 (8/6) in three hours. Wickmayer 'devastated' by doping ban Belgian tennis star Yanina Wickmayer is devastated and shattered by the one year ban imposed on her for falling foul of doping regulations, her coach Ana Devries told Belgian TV. She sounded devastated and shattered and was in tears when I spoke to her over the phone in Bali, Devries said referring to the 20-year-olds participation this week in the WTA Tournament of Champions event in Indonesia. One year is far too severe a sanction for someone who has not been found guilty of doping, she said. Just like that she will lose all that she has gained from several years of hard work. In a years time she will have lost all her WTA points and will have to start again from zero. Wickmayer, who burst onto the scene in September with a run into the US Open semi-finals, and her Belgian compatriot Xavier Malisse, were handed one-year bans by the Flemish Doping Tribunal (VDT) on Thursday. The world No. 18 was accused of failing on three occasions to fulfill the ADAMS (Anti-Doping Administration and Management System) under which athletes are obliged to tell national anti-doping authorities where they will be at a chosen hour each day for a three-month period. Malisse was also punished for missing a drugs test. The sanctions came as a surprise as only last month it was expected that the two players would escape with just a reprimand. Wickmayer, who has been seen as a potential Grand Slam winner in the making, immediately pulled out of end-of-the year Bali tournament missing her final group match against Spains Anabel Medina Garrigues. A spokesman for Wickmayer, Rudi Kuyl, called the VDT verdict absurd and unjust adding that they would be considering lodging an appeal with the Lausanne-based Court of Arbitration for Sport (CAS).