![Roger Federer of Switzerland celebrates his victory over Andre Agassi at the Pacific Life Open in Indian Wells, CA, March 20, 2004. Federer won the match 4-6 6-3 6-4. REUTERS/Kevin Lamarque KL/JDP Roger Federer of Switzerland celebrates his victory over Andre Agassi at the Pacific Life Open in Indian Wells, CA, March 20, 2004. Federer won the match 4-6 6-3 6-4. REUTERS/Kevin Lamarque KL/JDP](https://c8.alamy.com/comp/2D3M9P5/roger-federer-of-switzerland-celebrates-his-victory-over-andre-agassi-at-the-pacific-life-open-in-indian-wells-ca-march-20-2004-federer-won-the-match-4-6-6-3-6-4-reuterskevin-lamarque-kljdp-2D3M9P5.jpg)
Roger Federer of Switzerland celebrates his victory over Andre Agassi at the Pacific Life Open in Indian Wells, CA, March 20, 2004. Federer won the match 4-6 6-3 6-4. REUTERS/Kevin Lamarque KL/JDP
![Alternate player Thomas Johansson returns a shot during his round robin match against Roger Federer of Switzerland at the Tennis Masters Cup tournament in Shanghai November 15, 2002. Federer beat Johansson 6-3 Alternate player Thomas Johansson returns a shot during his round robin match against Roger Federer of Switzerland at the Tennis Masters Cup tournament in Shanghai November 15, 2002. Federer beat Johansson 6-3](https://c8.alamy.com/comp/2D3C5T3/alternate-player-thomas-johansson-returns-a-shot-during-his-round-robin-match-against-roger-federer-of-switzerland-at-the-tennis-masters-cup-tournament-in-shanghai-november-15-2002-federer-beat-johansson-6-3-7-5-to-advance-to-the-semi-finals-johansson-replaced-andre-agassi-of-the-united-states-who-withdrew-from-the-tournament-due-to-a-hip-injury-reutersclaro-cortes-iv-by-2D3C5T3.jpg)
Alternate player Thomas Johansson returns a shot during his round robin match against Roger Federer of Switzerland at the Tennis Masters Cup tournament in Shanghai November 15, 2002. Federer beat Johansson 6-3
![Roger Federer from Switzerland reacts after missing a shot during his match against Andre Agassi from the U.S. at the Kooyong International tennis tournament in Melbourne January 15, 2004. Agassi won the Roger Federer from Switzerland reacts after missing a shot during his match against Andre Agassi from the U.S. at the Kooyong International tennis tournament in Melbourne January 15, 2004. Agassi won the](https://c8.alamy.com/comp/2D4D3MA/roger-federer-from-switzerland-reacts-after-missing-a-shot-during-his-match-against-andre-agassi-from-the-us-at-the-kooyong-international-tennis-tournament-in-melbourne-january-15-2004-agassi-won-the-match-6-2-6-4-at-the-invitational-round-robin-event-held-as-a-warm-up-for-the-upcoming-australian-open-championship-starting-january-19-reutersdavid-gray-dgpb-2D4D3MA.jpg)
Roger Federer from Switzerland reacts after missing a shot during his match against Andre Agassi from the U.S. at the Kooyong International tennis tournament in Melbourne January 15, 2004. Agassi won the
![Andre Agassi Reflects on the 'GOAT' Debate Between Roger Federer, Rafael Nadal and Novak Djokovic - EssentiallySports Andre Agassi Reflects on the 'GOAT' Debate Between Roger Federer, Rafael Nadal and Novak Djokovic - EssentiallySports](https://image-cdn.essentiallysports.com/wp-content/uploads/GettyImages-1202918740.jpg)
Andre Agassi Reflects on the 'GOAT' Debate Between Roger Federer, Rafael Nadal and Novak Djokovic - EssentiallySports
Roger Federer of Switzerland celebrates match point over Andre Agassi... Nachrichtenfoto - Getty Images
![Andre Agassi of the United States stretches along the baseline to return a shot by Roger Federer of Switzerland during the first round of the ATP 2003 Tennis Masters Cup at the Andre Agassi of the United States stretches along the baseline to return a shot by Roger Federer of Switzerland during the first round of the ATP 2003 Tennis Masters Cup at the](https://c8.alamy.com/comp/2D3CP73/andre-agassi-of-the-united-states-stretches-along-the-baseline-to-return-a-shot-by-roger-federer-of-switzerland-during-the-first-round-of-the-atp-2003-tennis-masters-cup-at-the-westside-tennis-club-in-houston-texas-november-10-2003-reutersrichard-carson-jmgac-2D3CP73.jpg)