David Witt

David Witt (born June 2, 1973) is an American tennis coach and former professional player. He is currently coaching Frances Tiafoe and is best known as the former long-time coach of Venus Williams and Jessica Pegula. He enjoyed a successful junior career, during which time he won the USTA Boys' 16s Clay, Hard and National Championships and was the top-ranked under-16 in the USTA in 1989. He was also a semifinalist at the US Open Junior Boys Singles event in 1991. Provided by Wikipedia