as always during the major tournaments the ATP ranking list will witness some significant changes in just 14 days with the Australian Open reaching the critical semi-final stage world's best players Novak Djokovic and Rafael Nadal have both advanced into the last four adding more points to their tallies Novak was beaten in the fourth round last year while Rafa reached the quarters and they will both have a chance to leave their rivals further behind with almost nothing to defend before the clay season before the semi-final matches Novak currently stands on 9600 75 points nearly 2,000 points clear of Rafa who will try to reduce the gap here in Melbourne and also in February and March having to defend a considerable number of points on clay as was expected Roger Federer has lost the third place on the list heading to Melbourne with a slim advantage over Alexander's there have been with 2,000 points to defend Stefano ceci piste took down Roger in the fourth round in the Swiss will drop out from the top five for the first time since April 2017 losing too many points to stay ahead of his closest rivals it was another four Grand Slam run for zeref hitting the exit door after the fourth round loss to Mila's Roenick but still doing enough to become world no.3 again just under 1,500 points in front of Juan Martin del Potro who moves to fourth without even playing in Melbourne due to a knee injury Kevin Anderson lost in the second round to Frances TFO missing a chance to pass del Potro but entering the top five again as the third player who will overcome Federer on the list 245 points ahead of the Swiss Camie Shakur II had to retire against Novak Djokovic in the quarters but he did enough to return into the top seven for the first time since May 2017 150 points away from Dominick team who retired in the second round against alexei pope iron despite the first round loss John Isner managed to gain one position sending the last year's finalists Marin Cilic into the 10th spot his worst ranking since November 2016 Garin kachanov is still 11th but his newark chillage and him will have to slip down for one more place at the twenty-year-old Stefano ceci of his beats Rafael Nadal and enter the final the Greek is currently on 2805 points and he will crack the top 10 for the first time in a career if he topples the great Spaniard and reaches his maiden Grand Slam final after a solid run Milas Roenick gained three places so as another quarter finalist Roberto Bautista who is back inside the top 20 coming from outside the top 30 lucas plea advancement of his maiden Grand Slam semifinal and he will pass Roddick if he beats Novak Djokovic on Friday the quarter finalist Frances TFO will enter the top 30 for the first time on Monday just behind Pyle Edmund who failed to defend the semi-final points from a year ago struggling with a knee injury and losing in the opening round to Tomas Berdych ATP Live rankings before the Australian Open semifinals one novak djokovic SRB 9,000 675 to Rafael Nadal ESP 7000 843 Alexander zeref ger 6470 5-4 Juan Martin del Potro are 5065 Kevin Anderson RSA 4845 six Roger Federer sway 4607 Kei Nishikori jpn 4110 eight Dominic team aut 3969 John Isner USA 3155 ten Marin Cilic crow 3140 eleven Karen kachanov rust 2880 twelve Stefano ceci piss GRE 2805 thirteen born at Shaw rich Crowe 2605 14 Mila's Rana Kent 2250 15 Fabio Fognini Ida 2225 16 daniil met betta Brust 2017 Lucas police from 1955 18 Roberto Bautista ESP 1955 19 March ostinato height of 1870 20 Diego Schwartzman argh 1835 [Music]