Novak Djokovic has made the semi-finals just once in five tournaments since his win in Doha in January.
Djokovic lost to Nadal for the first time in three years.
Nadal ended a seven-match losing run against the former world number one.
Nadal has made 5 finals and won 2 titles thus far in 2017.
Wawrinka expects Djokovic to win Grand Slams again.
Federer has made his best start to a season since 2006 winning 3 titles thus far.
Nadal defeated Nick Kyrgios comfortably 6-3, 6-1 while Murray suffered defeat yet again.
Spanish number three believes evergreen Federer is the man to beat in Paris.
Federer has won three of the four tournaments he has played in 2017.
Nadal defeated Fabio Fognini 7-6, 3-6, 6-4 in the second round in Madrid.
Twelve-time grand slam champion coy over Agassi links but wants influence of grand slam winner
World number two parted ways with Marian Vajda, Gebhard Phil-Gritsch and Miljan Amanovic last week.
Nadal begins his quest for a third title in 2017 against Fognini at the Madrid Open.
Fleming says Djokovic needs to restart again, which is 'shocking' for the world No 2.
Djokovic announced his decision to part ways with longtime coach Marian Vajda on Friday (5 May).
Djokovic announced his decision to part ways with his longtime coach Marian Vajda on Friday, 5 May
Djokovic announced that he will be parting ways with his entire coaching team on Friday (5 May).
Fitness coach Gebhard Phil-Gritsch and physiotherapist Miljan Amanovic also depart backroom team.
Nadal believes the duo will be back sooner rather than later.
Federer and Nadal have played in a combined eight finals since the start of the season.
Nadal has been installed as favourite to win the French Open in 2017 owing to his current form on clay.
Federer will return to action at Roland Garros after an eight-week break.