JanMichael Charles Gambill is a currently inactive American tennis player who made his professional debut in 1996. His careerhigh singles ranking is World No. 14, which he achieved on June 18, 2001. Best known for his unusual doublehanded forehand, Gambill reached the quarterfinals of the 2000 Wimbledon Championships, the final of the 2001 Miami Masters, and won three singles titles.
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Source: Wikipedia