Roger Federer's full of confidence following the record-breaking 15th grand slam title he won at Wimbledon.
After declaring on Monday that the 'old Federer' was back, all his rivals may be quivering in their tennis shoes.
The Swiss great says 18 or 19 slam wins definitely seems possible after reaching 16 out of 17 grand slam finals in a row and beating the American Andy Roddick in five titanic sets in the Wimbledon final, regaining his number one world ranking from the injured Rafael Nadal on the way.
Four weeks ago the 27-year-old became only the sixth man to complete a career grand slam of all four majors when he finally got his hands on the French Open trophy.
Federer says he's playing without pressure after that and isn't scared of going into the very corner of the court and digging out the ball anymore.
He says that's why his serve sometimes faltered.