I am a Swiss tennis player. In 2004, I became the first man since Mats Wilander in 1988 to win three of the four Grand Slam singles titles in one year. In 2006, I repeated this feat and became the first man to win at least 10 singles titles in three consecutive years. I’m the only one to have won both the Wimbledon and the U.S. Open in three consecutive years. Who am I'

Answer to last week’s question: Edmund Hillary