Swimmer Tricia Duncan is the older sister of Tim Duncan, who professionally played what sport for 19 years
Tim Duncan Timothy Theodore Duncan (born April 25, 1976) is an American retired professional basketball player who played his entire 19-year career with the San Antonio Spurs of the National Basketball Association (NBA). Widely considered to be the greatest power forward of all time, he is a five-time NBA champion, two-time NBA MVP, three-time NBA Finals MVP, NBA All-Star Game MVP and NBA Rookie of the Year. He is also a 15-time NBA All-Star and the only player to be selected to both the All-NBA and All-Defensive Teams in all of his first 13 seasons.
Tim Shaw (swimmer) Timothy Andrew Shaw (born November 8, 1957) is an American former Olympic medal-winning swimmer and water polo player. He swam at the 1976 Summer Olympics and played on the USA's team at the 1984 Summer Olympics. He is one of a handful of athletes to win Olympic medals in two different sports. He was named World Swimmer of the Year in 1974 and 1975 by "Swimming World Magazine".