Aryna Sabalenka says she fell into 'deep, dark hole' mentally in shock defeat to Diana Shnaider
Matteo Arnaldi through to French Open last four as fellow Italian Berrettini retires injured
Maja Chwalinska enjoying tennis again at Roland Garros run after battle with depression
Dominant Sabalenka eyes semis while Polish sensation and besieged Auger-Aliassime face threats
