World No . 36 Novak Djokovic to play top-ranked Roger Federer 's in Madrid final . Serbian overcomes fourth seed Andy Murray in epic semifinal clash for 36th win of two-year . Nadal has fewer problems in defeating Roger Federer 's conqueror Richard Gasquet . Djokovic ended Nadal 's 2011 unbeaten run on clay in Madrid final .
World No . 2 Novak Djokovic to play top-ranked Rafael Nadal in Rome final . Serbian overcomes fourth seed Andy Murray in epic semifinal clash for 36th win of 2011 . Nadal has fewer problems in defeating Roger Federer 's conqueror Richard Gasquet . Djokovic ended Nadal 's two-year unbeaten run on clay in Madrid final .