Dalibor Svrcina, serve side view, 240 fps [jJCvXAIqf7X] Published in Everyday Knowledge December 2015, Prostejov www.swinganalyst.cz 73rvqMhSblC QJ5BpLfp93h 3eq2Xjwj2mT Mxyf5NKjbE4 vW9D24WknnU