Andre Agassi 1, ending Sampras's record of six consecutive year-ending top rankings (1993–98). This was the only time Agassi ended the year at No. 1. He began the next year by capturing his second Australian Open title, beating Sampras in a five-set semifinal and Yevgeny Kafelnikov in a four-set final. He was the first male player to have reached four consecutive Grand Slam finals since Rod Laver achieved the Grand Slam in 1969. At the time, Agassi was also only the fourth player since Laver to be the reigning champion of three of four Grand Slam events, missing only the Wimbledon title..
Andre Agassi an early loss in the second round to Tommy Haas. He won five titles in ten finals and was runner-up at the Masters Series tournament in Key Biscayne, losing to Marcelo Ríos, who became No. 1 as a result. At the year end he was awarded the ATP Most Improved Player of the Year for the second time in his career (the first being 10 years earlier in 1988). Agassi entered the history books in 1999 when he came back from two sets to love down to beat Andrei Medvedev in a five-set French Open final, becoming, at the time,