Who was the youngest male player to be the World No. 1?
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Lleyton Hewitt
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Rafael Nadal
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Roger Federer
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Björn Borg
A
Correct answer
Explanation
Lleyton Hewitt became the youngest male World No. 1 at age 20 years and 266 days on November 19, 2001, after winning the US Open. He achieved this ranking earlier than other tennis greats like Rafael Nadal (who reached No. 1 at age 22) and Roger Federer (age 22). Hewitt's achievement came during his peak when he won Grand Slam titles in 2001 (US Open) and 2002 (Wimbledon).