Radio Sport tennis commentator Matt Brown is joined by Tennis New Zealand High Performance Manager Simon Rea to present Game Set and Match, our weekly wrap of the world of tennis. This week the boys reflect on John Isner’s stunning triumph at the Miami Open and US Open champion Sloane Stephens brilliant run to the women’s title after showing no real form since her Flushing Meadows triumph last September. Matt and Simon discuss Novak Djokovic’s split from coach Andre Agassi and whether Rafael Nadal can retain the world number one ranking throughout the clay court swing where he has a lot of points to defend. The boys also look ahead to this week’s Davis Cup World Group quarter final ties and wrap the performances of Kiwi doubles players Michael Venus and Marcus Daniell in Miami.