John Isner explains why he believes tennis was tougher in 2012 than it is today, ‘it’s ridiculous’
- John Isner: 2 events in the last 90 days
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What happened
The ‘Big Four’, Novak Djokovic, Rafael Nadal, Roger Federer, and Andy Murray, were all close to their best in 2012. 14 years on, only Djokovic...
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