Yes he is
The final match was played between Roger Federer and Marat Safin. Roger Federer won the match. This was Roger Federer's first Australian Open Singles title.
Roger Federer first won the Wimbledon Championships in 2003, defeating Australian Mark Philippoussis in the final.
According to Wikipedia (refer to the link, below), Roger Federer started his professional tennis career in July 1998 at just under 17 years of age.
The final match was played between Roger Federer and Mark Philippoussis. Roger Federer won the match. This was Roger Federer's first Wimbledon Singles title.
· Roger Federer (tennis)
The final match was played between Robin Soderling and Roger Federer. Roger Federer won the match. This was Roger Federer's first French Open Singles title.
The final match was played between Lleyton Hewitt and Roger Federer. Roger Federer won the match. This was Roger Federer's first US Open Singles title.
1996
The first semi-final match was played between Roger Federer and Nicolas Kiefer. Roger Federer won the match. The second semi-final match was played between David Nalbandian and Marcos Baghdatis. Marcos Baghdatis won the match.
The first semi final match was played between Roger Federer and Andy Roddick. Roger Federer won the match. The second semi final match was played between Tommy Haas and Fernando Gonzalez. Fernando Gonzalez won the match.
The first semi final match was played between Rafael Nadal and Fernando Verdasco. Rafael Nadal won the match. The second semi final match was played between Andy Roddick and Roger Federer. Roger Federer won the match.
The first semi final match was played between Roger Federer and Jo-Wilfried Tsonga. Roger Federer won the match. The second semi final match was played between Marin Cilic and Andy Murray. Andy Murray won the match.