Andy Murray has kicked off his second stint working with Ivan Lendl with a win.

The world tennis number two has beaten Frenchman Nicolas Mahut in straight sets to reach the second round of the Queens grass court tournament in London.

Second seed Stan Wawrinka has lost to Fernando Verdasco.

Meanwhile French Open champ Garbine Muguruza has lost her first match since Roland Garros, beaten in straight sets by Belgian Kirsten Flipkens in the first round of the Mallorca grass court tournament.