.New York, NY, USA
Leylah Fernandez reacts after defeating Angelique Kerber during the fourth round of the US Open. (Photo credit: AP)

  • Leylah Fernandez beat 2016 title winner Angelique Kerber 4-6, 7-6 (5), 6-2
  • She had upset defending champion Naomi Osaka in the last round
  • She will now face Elina Svitolina in the quarterfinal