18-year-old American Coco Gauff dominates Martina Trevisan in straight sets 6-3, 6-1 to reach her first major tournament final as an individual and becomes the youngest finalist since 2001. #NBCSports #FrenchOpen #CocoGauff #MartinaTrevisan » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 »…