The three-time Madrid Open champion will not take part in the tournament this year Inside Sport newsletter: Get an expert guide to the biggest moments shaping the world of sport Get our free Inside Sport newsletter Get our free Inside Sport newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Novak Djokovic has withdrawn from the upcoming Masters 1000 tournament in Madrid as he continues to struggle with injury. The