International Tennis Federation - On this day in 1980, John McEnroe became world No.1 for the first time 👏 | Facebook
Wimbledon 1980: Wooden Racquets, Short Shorts And The Ultimate Showdown | All Things Considered | WNYC
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This Day in US Open History: Sept. 6, 1980 - Official Site of the 2023 US Open Tennis Championships - A USTA Event
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