Carl Chang, is the older brother and former coach of which tennis star, a now retired, American professional tennis player, that won 34 top-level professional singles titles?
Carl Chang (tennis) Carl Chang (born February 13, 1969) is the older brother and former coach of tennis star Michael Chang. He was born in Hoboken, New Jersey.
Billy Martin (tennis) Billy Martin (born December 25, 1956, in Evanston, Illinois, United States), is a right-handed former professional tennis player from the United States. During his career he won 1 singles titles and 3 doubles titles. He achieved a career-high singles ranking of World No. 32 in 1975. Martin currently serves as the head coach for the UCLA Bruins men's tennis team, a position he has held for the past 24 years since 1994. Martin, who played at UCLA, has a 14 straight top 5 NCAA team finishes and a 9 consecutive 20-win seasons. He was named ITA (Intercollegiate Tennis Association) division 1 National Coach of the Year and is a member of ITA Hall of Fame.