John McEnroe says it's "beyond belief" Roger Federer can play the way he does at the age of 36 as the Swiss legend looks to recapture the world No 1 spot in Rotterdam five years after he reached the pinnacle.
John McEnroe says it's "beyond belief" Roger Federer can play the way he does at the age of 36 as the Swiss legend looks to recapture the world No 1 spot in Rotterdam five years after he reached the pinnacle.