84K views · 1.4K reactions | The TOS-1A is a Russian thermobaric rocket system on a T-72 chassis, ideal for devastating fortified positions and urban warfare support. | Military Mechanics | Facebook

In our 1-day serve clinics we often find that players who try to make a technical change struggle with combining the toss and the hitting arm action. If you try to make changes to your toss and your hitting arm action at the same time, it is often too difficult to coordinate both movements. OTI Instructor Nadim Naser has come up with a new drill to help you get over this hurdle. In order to later combine both elements you first need to separate them! | Online Tennis Instruction