Bartůňková knocks out defending champion in Guadalajara, reaches maiden WTA semifinal

Czech teenager Nikola Bartůňková stunned defending champion Magdalena Frech in Guadalajara on Saturday to advance to her first-ever WTA Tour semifinal. The 19-year-old wildcard overcame ten double faults but still defeated the fourth seed 7-5, 6-4. She will now face American Iva Jovic for a spot in the final.