The 19-year-old Canadian teen Bianca Andreescu has become the first teen to reach US Open semi-finals in a decade since Caroline Wozniacki in 2009. To spot in the final, she defeated Belgium’s Elise Mertens  by 3-6, 6-2, 6-3. Andreescu could become the first teen to win a Grand Slam title since Maria Sharapova captured the 2006 US Open and she would be the youngest US Open champion since Russia’s Svetlana Kuznetsova in 2004.