Andre Agassi has revealed which players he feels are capable of challenging Roger Federer, Rafael Nadal, Novak Djokovic and Andy Murray.
Federer has beaten all odds at the age of 36 despite people writing off his chances to make the top of the ATP rankings.
The Madrid Masters has been penciled in as the Serbian's next appearance after some setbacks in his recovery.
Roger Federer, Rafael Nadal and Novak Djokovic have dominated the men's game for more than a decade.
Courier, a former world No.1 himself, is simply amazed by the level the 20-time Grand Slam champion is managing to sustain during the twilight of his career.
The 12-time grand slam champion has yet to begin hitting balls as he recovers from a "small medical intervention".
Boris Becker believes Novak Djokovic does not get as much credit as he deserves for his performances during the era of Rafael Nadal and Roger Federer.
Rafael Nadal, Novak Djokovic and Andy Murray's form never dampened Roger Federer's dream of being a grand slam champion again, the 36-year-old has admitted.
Rafael Nadal and Novak Djokovic are currently sidelined with injury and the latter had a very humourous take on why they are currently in recovery.
Nadal is the defending champion, having won the Monte-Carlo Masters for the record 10th time in 2017.
Roger Federer and Rafael Nadal could be on a collision course to meet in the Miami Open final again after both were confirmed to play the event next month.
Novak Djokovic has posted a video updating his rehabilitation from a small medical intervention he underwent last week.
Rafael Nadal has pinpointed Roger Federer and Novak Djokovic as the two biggest rivals of his tennis career and expects them to challenge his world number one crown.
Roger Federer is confident that Nick Kyrgios and Bernard Tomic do enjoy their moments on court especially when they are winning.
Uncle Toni believes something should be done about the injuries that have occurred to the likes of Rafael Nadal, Novak Djokovic and Andy Murray.
Chung has ambitions to win a Grand Slam in the future and has set his sights on the French Open in May, having done very well on clay in 2017.
The Serb made his return in the Australian Open but was not at his best as he still felt some pain and eventually crashed out to Heung Chung in the quarter-finals.
Nick Kyrsgios and Alexander Zverev have been primed as the players to make it to the top with the German becoming the youngest top-five player since 2007.
Kyrgios has beaten the likes of Nadal, Federer and Djokovic in his career which adds credibility to Laver's claims.
Rod Laver believes there is one thing that separates Roger Federer apart from the likes of Rafael Nadal, Novak Djokovic, Andy Murray and the rest of the Tour.
There will be no record seventh Australian Open title for Novak Djokovic this year after the Serbian lost 7-6 (7-4) 7-5 7-6 (7-3) to Hyeon Chung of South Korea in Melbourne.
Roger Federer tried to have his second round match against Jan Lennard Struff moved to the evening to avoid the searing temperatures at the Australian Open.