Federer, 36, has won two Grand Slams as well as Masters 1000 events in Indian Wells, Miami and Shanghai this year.
His 2017 campaign has seen the Swiss rise to No 2 in the world and comes off the back of a disappointing season in 2016.
Indeed, Federer is enjoying a second wind in his career and heads into next week’s ATP World Tour Finals in London as one of the favourites.
Federer, alongside Rafael Nadal, has managed to maintain his top form despite his ageing years.
And his former coach Paul Annacone reckons he knows why.
When I look at the evolution of the sport, I think a seasoned champion such as Roger is forever adding to his tennis intelligence, and as that IQ gets higher it allows him to adjust his game and to win more efficiently,” Annacone told the ATP’s website.
“While mere mortals plod along, and cling to the status quo, Roger’s cumulative court experience affords him opportunities to adjust his strategy.
“And as athletes evolve, so do information, training and sports science.
“If we follow that logic, Roger Federer is a better player now at 36 than he was during his most dominant period: that three-year stretch from 2004-06
A number of ingredients go into how and if a player will reach his potential. As far as I can make out, they are:
- Head – the ability to think and act through adversity.
- Heart – the ability to compete unconditionally.
- Talent – the physical skill and natural ability.
“While a player can improve in all three of these areas, there are some physical gifts that cannot be learned (Roger did pretty well when talent was handed out).
“Where head and heart are concerned, however, these are traits that can grow and build through years of development.
“While Roger’s talent is off the charts, he has learned to manage and understand that talent and mastered how best to use it.
“He then used his talent with his head and heart to complete a lethal winning combination, and that has only become more effective as he has matured.
“His maturity and growth were influenced by a terrific upbringing from his parents, Robbie and Lynette, and a strong work ethic with countless hours of practice. Sprinkled into the mix is Roger’s natural curiosity about the game.”