Question: Renee Powell and Althea Gibson were the first two African-American female golfers on the LPGA Tour. In what other sport did Gibson win major championships?
Related documents: [0]  [DOC] Renee Powell (born May 4, 1946) is an American professional golfer who played on the U.S.-based LPGA Tour and is currently head professional at her family's Clearview Golf Club in East Canton, Ohio. She was the second African-American woman ever to play on the LPGA Tour. Althea Gibson was the first African-American LPGA Tour member, joining in 1963. Powell joined in 1967, and played on Tour from 1967 to 1980. It was not until 1995 that another African-American woman played on the tour. LaRee Sugg played on Tour from 1995 to 1997, and from 2000 to 2001. [END] 
[1]  [DOC] Althea Gibson (August 25, 1927 – September 28, 2003) was an American tennis player and professional golfer, and the first black athlete to cross the color line of international tennis. In 1956, she became the first person of color to win a Grand Slam title (the French Open). The following year she won both Wimbledon and the U.S. Nationals (precursor of the U.S. Open), then won both again in 1958, and was voted Female Athlete of the Year by the Associated Press in both years. In all, she won 11 Grand Slam tournaments, including six doubles titles, and was inducted into the International Tennis Hall of Fame and the International Women's Sports Hall of Fame. "She is one of the greatest players who ever lived," said Robert Ryland, a tennis contemporary and former coach of Venus and Serena Williams. "Martina couldn't touch her. I think she'd beat the Williams sisters." In the early 1960s she also became the first black player to compete on the women's professional golf tour. [END] 
Answer: 
tennis
tennis