Complex sentence: He won the Men's Doubles title at Roland Garros in 2014, partnering with Julien Benneteau; he's the son of 1983 French Open semifinalist Christophe Roger-Vasselin.
Split into simpler sentences: He won the Men's Doubles title at Roland Garros in 2014, partnering with Julien Benneteau. He is the son of 1983 French Open semifinalist Christophe Roger-Vasselin.