Mark Knowles
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Mark Knowles is a Bahamian former professional tennis player and coach. He is a former world No. 1 in doubles. He won three of the four Grand Slam tournaments in men's doubles, partnering with Daniel
Knowles 2009 US Open 01
Knowles, 2007
Mark Merklein
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Mark Merklein is a Bahamian former college and professional tennis player. He played for the Bahamas Davis Cup team from 1999 to 2004.
Mark Knowles
…Channel, providing in-match commentary, courtside interviews and tournament desk analysis. He started coaching Jessica Pegula in 2024 together with Mark Merklein. Knowles was elected by his peers as vice-president of the ATP and was selected to be on the ATP Drug Force Council…
Merklein in 2026