Boris Becker is best known for winning three Wimbledon titles and six grand slam tennis tournaments.
원문출처 : http://www.cnn.com/2017/11/29/football/boris-becker-world-cup-football-quiz/index.html
원문출처 : http://www.cnn.com/2017/11/29/football/boris-becker-world-cup-football-quiz/index.html