Valencia found it all too easy against Racing Genk on Wednesday in recording their biggest Champions League win but coach Unai Emery knows securing the score draw they need to qualify at Chelsea next month will present a much tougher challenge. A quickfire first-half hat-trick from striker and captain Roberto Soldado, and goals from Jonas, Pablo Hernandez, Aritz Aduriz and Tino Costa, gave Emery\'s side a crushing 7-0 win over the Belgians at the Mestalla. That result is one goal short of Liverpool\'s record 8-0 destruction of Besiktas in 2007. A score draw at Stamford Bridge on December 6 would be enough to secure a berth in the last 16 after Chelsea were upset 2-1 in Germany by Bayer Leverkusen, who went top of Group E and sealed their place in the knockout round. \"We have a chance in London to see what we are capable of in this competition and against a powerful opponent,\" Emery, whose side drew 1-1 with Chelsea in Valencia in September, said at a post-match news conference. \"We\'ll have to prepare with a lot of strength and intelligence, but we should try to enjoy it as well. \"We have our fate in our own hands and for that we should be satisfied. We\'ll go to London to win.\" Valencia\'s solid start to the season has been built around the splendid form of Soldado, the former Real Madrid, Osasuna and Getafe forward.