MASON, OH - AUGUST 15: Simona Halep of Romania confers with her coach Darren Cahill between sets while playing Ajla Tomjanovic of Australia during the Western & Southern Open at Lindner Family Tennis Center on August 15, 2018 in Mason, Ohio. Matthew Stockman,Image: 382697992, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Profimedia

April 27, 2021, MADRID, MADRID, SPAIN: Darren Cahill head coach talks to with Simona Halep of Spain durind his practice on day one of the WTA 1000 - Mutua Madrid Open 2021 at La Caja Magica on April 27, 2021 in Madrid, Spain.,Image: 608219730, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Profimedia