Why is the term 'Big Four' used in tennis when its clear to everyone that Murray is nowhere near the class and achievements that the other three have managed? Is it justified
![Roger Federer poised to complete Wimbledon opus as peerless big four prepare for 100th battle - Eurosport Roger Federer poised to complete Wimbledon opus as peerless big four prepare for 100th battle - Eurosport](https://imgresizer.eurosport.com/unsafe/1200x0/filters:format(jpeg)/origin-imgresizer.eurosport.com/2015/07/03/1629786-34593543-2560-1440.jpg)
Roger Federer poised to complete Wimbledon opus as peerless big four prepare for 100th battle - Eurosport
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The Biggest Reasons to Believe the Big 4 Era in Men's Tennis Is Over | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
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