Serena Williams steps up pace as she dismantles Annika Beck in style | Sport | The Guardian

Against Williams – the second oldest woman in the draw behind her sister Venus – she looked as though she was fighting in the wrong weight division. Williams sent down one serve at 123mph and her average first serve was well over 100mph in both sets; Beck’s average speed in the two sets was 86 and 88mph, about the same as Williams’s second serve. Nor did Beck’s ground strokes have the muscle to trouble her opponent.

Source: Serena Williams steps up pace as she dismantles Annika Beck in style | Sport | The Guardian