(Reuters) - World number one Novak Djokovic cruised through his opening match at the Western & Southern Open in Cincinnati on Wednesday, but Stan Wawrinka had to dig deep to beat Borna Coric and conceded his thoughts had been far from tennis over the past few days.
French Open champion Wawrinka said he had yet to receive an apology from Nick Kyrgios for the Australian's incendiary comment during their match last week.
Kyrgios, 20, drew the ire of the tennis world in Montreal after he insulted Wawrinka at the Rogers Cup, saying that another Australian player, Thanasi Kokkinakis, had slept with Wawrinka's girlfriend.