Answer: Billie Jean King
Female legendary tennis player, Billie Jean King defeated ex-world number 1, Bobby Riggs in 1973 to come out victorious in the famous "Battle of the Sexes" tennis game. She won the game by 6-4, 6-3, 6-3 result.

Answer: Czech Republic
The Czech Republic, in 2012 became the first country to ever win the three cups in a calendar year.

Answer: Japan
Osaka is a Japanese international. She was born on the 16th of October 1997 at Osaka in Japan.

Answer: Sergi Bruguera
Sergi Bruguera defended his title by beating Alberto Berasategui, his fellow countryman in the final of the tournament. He won by a set result of; 6-3, 7-5, 2-6, and 6-1.

Answer: 2000
Sampras last Wimbledon title came in 2000 when he beat Pat Rafter in the men's singles final game of the tournament.

Answer: Czech Republic
The Czech Republic defeated Serbia in the final of the 2012 Fed Cup. By so doing, the Czechs successfully retained their title.

Answer: Karolína Plíšková
Karolína Plíšková crushed Serena Williams out of the semifinals of the 2016 U.S. Open women's single Championship.

Answer: Lucas Pouille
Rafael Nadal lost in the quarterfinals of the 2016 U.S. Open Champions to French international, Lucas Pouille. The competition was organized at the USTA Billie Jean King National Tennis Center in the City of New York.

Answer: Novak Djokovic
Marin Cilic could not defend his title, as he was defeated by Novak Djokovic in the semi-finals of the tournament. Djokovic eventually went on to win the final by beating Roger Federer.

Answer: France
France won the 2017 Davis Cup. They beat Belgium in final to lift the trophy.