Sabalenka has machine-like consistency - but she's no 'robot'

[Nickie]

Aryna Sabalenka's consistency at the Grand Slams is unrivalled in the women's game but, going into the US Open semi-finals, her three titles feels below par.

More... (https://www.bbc.com/sport/tennis/articles/ce3210znqppo?at_medium=RSS&at_campaign=rss)