![Elise Mertens and her coach David Taylor pictured during a training session preparing for the 'Australian Open' tennis Grand Slam, Sunday 13 January 2019 in Melbourne Park, Melbourne, Australia. This first grand Elise Mertens and her coach David Taylor pictured during a training session preparing for the 'Australian Open' tennis Grand Slam, Sunday 13 January 2019 in Melbourne Park, Melbourne, Australia. This first grand](https://c8.alamy.com/comp/2M2NWBP/elise-mertens-and-her-coach-david-taylor-pictured-during-a-training-session-ahead-of-the-secound-round-at-the-australian-open-tennis-grand-slam-wednesday-16-january-2019-in-melbourne-park-melbourne-australia-this-first-grand-slam-of-the-season-will-be-taking-place-from-14-to-27-january-belga-photo-patrick-hamilton-2M2NWBP.jpg)
Elise Mertens and her coach David Taylor pictured during a training session preparing for the 'Australian Open' tennis Grand Slam, Sunday 13 January 2019 in Melbourne Park, Melbourne, Australia. This first grand
Tennis: Top women are capable of playing five sets, Australian tennis coach David Taylor says | The Courier Mail
![Elise Mertens and her coach David Taylor pictured during a training session preparing for the 'Australian Open' tennis Grand Slam, Sunday 13 January 2019 in Melbourne Park, Melbourne, Australia. This first grand Elise Mertens and her coach David Taylor pictured during a training session preparing for the 'Australian Open' tennis Grand Slam, Sunday 13 January 2019 in Melbourne Park, Melbourne, Australia. This first grand](https://l450v.alamy.com/450v/2m2np59/elise-mertens-and-her-coach-david-taylor-pictured-during-a-training-session-at-the-australian-open-tennis-grand-slam-saturday-12-january-2019-in-melbourne-park-melbourne-australia-this-first-grand-slam-of-the-season-will-be-taking-place-from-14-to-27-january-belga-photo-patrick-hamilton-2m2np59.jpg)
Elise Mertens and her coach David Taylor pictured during a training session preparing for the 'Australian Open' tennis Grand Slam, Sunday 13 January 2019 in Melbourne Park, Melbourne, Australia. This first grand
![Naomi Osaka, of Japan, left, talks with her coach David Taylor, right, during her match against Simona Halep at the Miami Open tennis tournament, Friday, March 24, 2017, in Key Biscayne, Fla. ( Naomi Osaka, of Japan, left, talks with her coach David Taylor, right, during her match against Simona Halep at the Miami Open tennis tournament, Friday, March 24, 2017, in Key Biscayne, Fla. (](https://c8.alamy.com/comp/2MW7BRR/naomi-osaka-of-japan-left-talks-with-her-coach-david-taylor-right-during-her-match-against-simona-halep-at-the-miami-open-tennis-tournament-friday-march-24-2017-in-key-biscayne-fla-ap-photolynne-sladky-2MW7BRR.jpg)