Federer thought it would be difficult to go through the same journey again, especially when he had come so close to achieving something special.
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.
Rafael Nadal wants to be at his best for the clay court swing of the season as he targets titles at the Monte Carlo Masters and Roland Garros.
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.
Nadal had to pull out of his quarter-final clash against Marin Cilic in the Australian Open with a hip injury, which has set him back by upto three weeks.
Roger Federer defeated Marin Cilic to win his 20th Grand Slam title in the 2018 Australian Open on 28 January.
Nadal had to pull out of his quarter-final clash against Marin Cilic in the Australian Open with a hip injury which has set him back by upto three weks.
Roger Federer won his 20th Grand Slam title at the 2018 Australian Open. Stefan Edberg believes it will be difficult to replace him once the Swiss ace retires.
Roger Federer won his 20th Grand Slam title at the 2018 Australian Open to make it eight titles in just over 12 months.
Former women's world number one Kim Clijsters believes newly crowned Australian Open champion Roger Federer could retire in "two or three years".
Roger Federer won his 20th men's singles Grand Slam title at the 2018 Australian Open to make it three majors in 12 months.
Toni Nadal continually reminds Rafael Nadal to adapt to keep pace with Roger Federer at the summit of men's tennis.
Nadal retired in the fifth set of his quarter-final match against Marin Cilic in the Australian Open because of a hip injury, ending his hopes of a 17th Grand Slam title.
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.
Managing his schedule effectively will be key to sustain his current run of form, according to Roger Federer.
Pat Cash believes Australian Open champion Roger Federer has one more goal in tennis after winning his 20th Grand Slam.
Federer won his 20th title at the Australian Open, beasting Marin Cilic in an engrossing contest, which lasted five sets.
Federer was pegged back by Cilic twice and had to rely on all his experience to emerge victorious in five sets.
Federer will now face his opponent in last year's Wimbledon final Cilic on Sunday [28 January] after the Croat dumped out new British hope Kyle Edmund
With Andy Murray injured and Roger Federer and Rafael Nadal braced to dominate again; can Kyle Edmund take the tennis world by storm?
