Andre Agassi significant championships. In 1998, Agassi began a rigorous conditioning program and worked his way back up the rankings by playing in Challenger Series tournaments, a circuit for pro players ranked outside the world's top 50. After returning to top physical and mental shape, Agassi recorded the most successful period of his tennis career and also played classic matches in that period against Pete Sampras and Patrick Rafter. In 1998, Agassi won five titles and leapt from No. 110 to No. 6, the highest jump into the top 10 made by any player during a calendar year. At Wimbledon, he had
2010 Roger Federer tennis season least the semifinals at the Australian Open, breaking the previous record held by Ivan Lendl. In the final, Federer defeated fifth-seeded Andy Murray in straight sets to claim his fourth Australian Open singles title. This win tied him for most Australian Open victories in the open era at four with Andre Agassi. Since Wimbledon 2005 Federer had made the finals of 18 out of 19 Grand Slam tournaments, an extraordinary period of sustained excellence unparalleled in the Open Era. Federer withdrew from the Barclays Dubai Tennis Championships for the second consecutive year due to a lung infection. Federer then appeared