Robin Bo Carl Söderling (Swedish pronunciation: [ˈrɔ̌bːɪn ˈsø̌ːdɛɭɪŋ]; born 14 August 1984) is a Swedish former professional tennis player. He was ranked world No. 4 in men's singles by the Association of Tennis Professionals (ATP) in November 2010. Söderling won ten singles titles on the ATP Tour, with career highlights including two consecutive finals at the French Open in 2009 and 2010, and a Masters title at the 2010 Paris Masters. He was the first player to defeat Rafael Nadal at the French Open. Söderling played his last professional match at only age 26 after contracting a lingering bout of mononucleosis.