Federer has won 19 of his 20 matches in 2017 despite missing six months with a knee injury.
Becker also thinks either Federer or Nadal can finish the year as number one in the singles race.
Nadal has lost just 20 games in his four matches in the French Open thus far.
Austrian is "physically and mentally" ready to challenge for grand slams believes Gunter Bresnik.
Despite security concerns, the tennis duo will feature at SW19.
Nine-time champion completes fourth straight sets win of campaign at Roland Garros.
Defending champion taken to five sets by world number 41 Diego Schwartzman.
World number four chasing 'La Decima' at Roland Garros.
Nadal is seeking a 10th title at Roland Garros in 13 appearances.
King of Clay is seeking to become the first player in the Open Era to win 10 titles at any Grand Slam event.
Nadal is the favourite to win the ongoing French Open for the 10th time.
Roger Federer has won three titles and is 19-1 in 2017 so far.
Exclusive: The 2002 French Open winner confident his fellow Spaniard will triumph at Roland Garros.
Federer, Nadal and Djokovic together hold 44 Grand Slam titles.
The Spaniard eased to a 6-1 6-4 6-1 over his French opponent.
Soderling has backed Federer's decision to pick and choose the tournaments he wants to play.
Nadal has won three titles in 2017 and is the strong favourite ahead of the French Open.
Zverev has beaten Federer and Djokovic and come close to upsetting Nadal in his short career on the tour.
Johanna Konta drawn against Hsieh Su-wei of Taiwan in the first round at Roland Garros.
Becker also praised Djokovic's appointment of Andre Agassi as a coach.
Nadal has won three titles on clay in 2017 in Monte Carlo, Madrid and Barcelona.
The former world No 4 has heaped praise on 23-year-old Dominic Thiem.