In a repeat of the 2017 final, John Isner sent down 24 aces to knock Matthew Ebden out of the Hall of Fame Tennis Championships.
Beaten finalist in 2018, Kyle Edmund started his quest to go one better at the Grand Prix Hassan II this year in emphatic fashion.
Former world number one Rafael Nadal saw his preparation for the Mexican Open disrupted, but he still defeated Mischa Zverev on Tuesday.
Playing for the first time since the Australian Open final, Rafael Nadal was too good for Mischa Zverev in Acapulco on Tuesday.
World number four Juan Martin del Potro beat Albert Ramos-Vinolas in straight sets at the China Open.
Nick Kyrgios was left standing on court in his socks before a match at the Cincinnati Masters on Ohio, where Roger Federer won convincingly.
John Isner set up a semi-final clash with Matthew Ebden after defeating Mischa Zverev in three sets at the Atlanta Open.
John Isner – a four-time champion of the ATP 250 tournament – made light work of Alex de Minaur 6-3 6-2 on Wednesday.
Pemain tenis Jerman, Alexander Zverev, mengesahkan kejuaraan Piala Rogers 2017 selepas menewaskan juara Wimbledon 2017, Roger Federer, menerusi straight-set 6-3, 6-4 dalam aksi final di Montreal.