Top seed Serena Williams needed just 65 minutes to overcome Sara Errani 6-1 6-3 and book her place in the French Open semi-finals at Roland Garros.
Mchezaji bora Serena Williams alihitaji dakika 65 pekee kumshinda Sara Errani 6-1 6-3 na kujikatia tiketi ya nusu fainali ya French Open katika uwanja wa Roland Garros.