Every tennis fan felt compelled to make a choice in the middle of a recent golden era for the sport. Who was the best: Roger Federer, Novak Djokovic or Rafael Nadal? By 2012, the three horsemen of men’s tennis won everything,

One of the winningest Grand Slam champions is calling it a career, marking the true end of one of the great eras in modern men's tennis.

Novak Djokovic paid tribute to Rafael Nadal as his great rival confirmed his retirement from tennis at the end of the season. Djokovic and Nadal met a record 60 times across almost two decades in one of the greatest rivalries of the modern era.