( CNN ) -- Novak Djokovic cruised to a fourth Dubai Open title with a straight sets 7-5 6-3 win over Tomas Berdych at the Dubai Tennis Stadium on Saturday . The world No.1 came back from a break down in the first set against the imposing Czech -- who beat Roger Federer in the semifinals on Friday -- to eventually prevail in just over 90 minutes and extend his unbeaten run to 18 matches . Read : Federer : 'Naive to think tennis is clean ' Djokovic , who won a fourth Australian Open title in January , was last defeated by Sam Querrey at the BNP Paribas Masters on October 31st . `` I felt when I came from break down that I started believing in myself a little bit more . I hung in there and stayed tough . This is the important thing , '' Djokovic said , ATPWorldTour.com reported . Read : Grand slam diet : How to supercharge your body . `` I have been enjoying my time , always coming here with a big team , with family , friends , '' he added . `` Everybody has been welcomed . This generosity of the people and from the organisation is always remembered . So this is definitely one of my favourite tournaments throughout the year . Winning it four times now is something that I definitely enjoy . '' Read : Visualizing greatness : How Novak Djokovic rose to the top . Meanwhile in the Brazil Tennis Cup , top seed Venus Williams was beaten by world 109 Olga Puchkova in the semifinals . The Russian came from a set down to eventually beat the 32-year-old 4-6 6-4 7-5 to book her place in the final against Romania 's Monica Niculescu .
Novak Djokovic beats Tomas Berdych in the final of Dubai Open 7-5 6-3 . Serb , who won a fourth Australian Open title in January , now unbeaten in 18 matches . TL;DR