![\"Darren](\"https:\/\/www.newsbeep.com\/ca\/wp-content\/uploads\/2025\/08\/sinner-cahill-australian-open-2025-hug.jpg\")
<\/p>\n Player Features
\n Cahill’s deep dive into ‘Competition animal’ Sinner<\/p>\n
Australian coach discusses the key factors behind his charge’s rise to No. 1<\/p>\n
August 11, 2025<\/p>\n
<\/p>\n
Peter Staples\/ATP Tour<\/p>\n
Darren Cahill (right) has worked with Jannik Sinner since July 2022. (File photo)
\n By ATP Staff<\/p>\n
A No. 1 in the PIF ATP Rankings is not built in a day. <\/p>\n
Jannik Sinner<\/a> has now been entrenched at the top of tennis\u2019 mountain for 14 consecutive months. The Italian\u2019s success has been the product of a relentless work ethic and desire to improve that has been facilitated by his coaches, Darren Cahill<\/a> and Simone Vagnozzi<\/a>. <\/p>\n Cahill and Vagnozzi joined Sinner\u2019s team within six months of each other in early 2022. Since then the Italian has lifted four Grand Slam titles, the Nitto ATP Finals<\/a> crown and four ATP Masters 1000 trophies. The greater the stage, the more explosive Sinner seems to become when he steps on court. <\/p>\n \u201cThat\u2019s why we are so proud as coaches, because all that work you\u2019ve been doing for the past three years eventually shows up in a big match, at a big tournament, for him to be able to get through and win that match,\u201d Cahill told ATP Media at the Cincinnati Open<\/a>. \u201cSo it\u2019s not just four or five days when you can make those big changes. It\u2019s the combination of a year or two of just pushing him day to day and making sure we continue to work on those things.\u201d <\/p>\n Watch full interview: Darren Cahill<\/a> on \u2018Competition animal\u2019 Sinner: <\/p>\n