Complex sentence: Being one of the only U.S. Olympic swimmers to chose to train abroad, she now lives in France and trains with the club team in Marseille, under head coach Romain Barnier, a former Olympian.
Split into simpler sentences: Being one of the only USA Olympic swimmers to chose to train abroad, she now lives in France and trains with the club team in Marseille. Under head coach Romain Barnier, a former Olympian.