French Open: Andy Murray ready for anything against tricky Martin Klizan

• World No1 faces Slovak involved in row during first-round match
• Rafael Nadal and Novak Djokovic progress to third round in styleOf the many qualities great athletes share, ruthlessness is among the most apparent. When Rafael Nadal and Novak Djokovic advanced to the third round of the French Open on day four, almost in tandem on the two principal stages, they crushed their opponents with such familiar ease that it seemed a shame only one of them can reach the final.If they do meet t