The Madrid Open, sponsored by Mutua Madrileña and so known as Mutua (Madrileña) Madrid Open, is a joint men's and women's professional tennis tournament. The clay court event is classified as an ATP World Tour Masters 1000 on the Association of Tennis Professionals tour and a Premier Mandatory event on the Women's Tennis Association tour. Ion Tiriac, a Romanian former ATP player and now billionaire businessman, is the owner of the tournament since 2009.