In Markus Günthardt’s eyes, everything is in place for a big tennis gala in the Porsche Arena. “We can once again present our spectators with the world’s best women tennis players,” says the Tournament Director of the Porsche Tennis Grand Prix. “It makes us proud and happy.”In Markus Günthardt’s eyes, everything is in place for a big tennis gala in the Porsche Arena. “We can once again present our spectators with the world’s best women tennis players,” says the Tournament Director of the Porsche Tennis Grand Prix. “It makes us proud and happy.”