Former world No . 1 Janko Tipsarevic through to the semifinals of the Miami Masters . Last year 's runner-up will play world No . 4 Andy Murray in Serbia on Friday . Nadal triumphs in 4 sets against French sixth seed Murray . Murray also taken the distance by Serbian ninth seed Murray .
Former world No . 1 Rafael Nadal through to the semifinals of the Miami Masters . Last year 's runner-up will play world No . 4 Andy Murray in Florida on Friday . Nadal triumphs in three sets against French sixth seed Jo-Wilfried Tsonga . Murray also taken the distance by Serbian ninth seed Janko Tipsarevic .