The former US Open champion has an amazing kick serve. Stosur hits one of the heaviest balls on tour—high velocity combined with incredible topspin, on both her first and second deliveries. The key to ...

The year has been long and chaotic, so here's a countdown of the Top 15 instruction tips we have to offer. See No. 12 here. The kick serve can be one of the toughest shots to return since it can ...