Aryna Sabalenka says she fell into 'deep, dark hole' mentally in shock defeat to Diana Shnaider
Mensik brings down Fonseca to march into the semi-finals of the French Open
Dominant Sabalenka eyes semis while Polish sensation and besieged Auger-Aliassime face threats
Diana Shnaider stuns world number one Aryna Sabalenka at Roland Garros to make semi-finals
