Coach Patrick Mouratoglou says he has always had a great level of respect for Simona Halep as he still remembers well all the tough battles the Romanian has had against Serena Williams. On Thursday, Mouratoglou announced he’s the new full-time coach of Halep. 23-time Grand Slam champion Williams hasn’t played since Wimbledon and Mouratoglou had a conversation with the former world No. 1 before accepting Halep’s job offer. Halep is no stranger to Mouratoglou as many times he had prepare tactics for Williams when she played the Romanian. Williams owns a 10-2 head-to-head record against Halep but …