If you want to serve well and make problems for your opponent on serve reception, your serve has to meet a lot of requirements and parameters. And you know yourself that you make a lot of mistakes when you serve. Mistakes you need to avoid.
If you want to serve well and make problems for your opponent on serve reception, your serve has to meet a lot of requirements and parameters. And you know yourself that you make a lot of mistakes when you serve. Mistakes you need to avoid.