![Roger Federer reveals secret to serving dominance after Australian Open win | Tennis | Sport | Express.co.uk Roger Federer reveals secret to serving dominance after Australian Open win | Tennis | Sport | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/72/590x/Roger-Federer-at-the-Australian-Open-907675.jpg)
Roger Federer reveals secret to serving dominance after Australian Open win | Tennis | Sport | Express.co.uk
![Roger Federer Live en Twitter: "97 consecutive service games held by @rogerfederer in Cincinnati, a streak that has lasted 4 years since 2014. Can he make it 100 on Sunday? #CincyTennis https://t.co/mAAI6muYGN" / Roger Federer Live en Twitter: "97 consecutive service games held by @rogerfederer in Cincinnati, a streak that has lasted 4 years since 2014. Can he make it 100 on Sunday? #CincyTennis https://t.co/mAAI6muYGN" /](https://pbs.twimg.com/media/Dk7DHzPVAAETlbj.jpg)
Roger Federer Live en Twitter: "97 consecutive service games held by @rogerfederer in Cincinnati, a streak that has lasted 4 years since 2014. Can he make it 100 on Sunday? #CincyTennis https://t.co/mAAI6muYGN" /
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