Roger Federer made ONE vital change to bring himself success this year - former world No1
Roger Federer is looking to win his 20th Grand Slam
That’s the view of former world No1 Juan Carlos Ferrero.
Roger Federer returned from a six-month injury lay off to take the 2017 tennis season by storm.
The tennis veteran won two Grand Slams and finishes the season second in the world rankings, behind only rival Rafael Nadal.
Nadal also made his own comeback from a spell on the sidelines though injury, winning the French Open and the US Open.
But Ferrero, winner of the 2003 French Open, is shocked by the impact Federer has made on his return.