Tennis highlights: Lorenzo Musetti stuns Grigor Dimitrov to reach maiden semi-finals at ATP Acapulco

Italian Lorenzo Musetti burst onto the scene last September after beating Stan Wawrinka and Kei Nishikori back-to-back at the Italian Open. The world number 120 fought through qualifying in Mexico this week. He has set up a semi-final clash against Stefanos Tsitsipas after producing a shock victory over Bulgarian Grigor Dimitrov.