Boisson saved two set points and rode the support of a raucous Paris crowd to reach the Roland Garros last four as Andreeva imploded.

French wild-card entry Loïs Boisson has upset sixth-ranked Mirra Andreeva 7-6 (6), 6-3 in front of a boisterous and partisan crowd to reach the French Open semifinals.

Mirra Andreeva had a tough day at the office on Wednesday, suffering a straight-sets defeat to world No. 361 Lois Boisson at Roland Garros despite leading in both sets. The sixth seed struggled to cope with the unruly French crowd and eventually lashed out, smashing a ball into the stands in a moment of frustration.