How to make the perfect heavy backspin serve in competition

Ti Long instructs Australian students How to make a perfect heavy backspin serve in competition very carefully and in detail Ti Long trains the most special table tennis in the world, contributing knowledge to the world table tennis community Please support me: Learn more at the Facebook: +84909423006 (Ti Long) Whatapps, Zalo, Viber. .. , tabletennis, pingpong, hocbongban, daybongban, tabletennistraining, Ito, MaLong, 乒乓, 탁구, tilong, tilongclub, tabletennistrainingchina, Tischtennis unterrichten, enseigner le tennis de table, учить настольному теннису, 卓球を教える, mimaito, daybongban, hocbongban, fanzhendong, ovtcharov, worldtabletennis, manikabatra, india, indian, hocbongban , learntabletennis, tabletennisserve, counter, harimoto, shortpips