Dalibor Svrcina 14/02/2017: 1st serve 177 km/h [TzhTPeYHjNP] Published in Everyday Knowledge Slow motion 1st serve of European champ U14 swiFncW5mVs oUopqOtnuJv 297KsOIFC7U K7HfL3vhiY2 IeblfakX8O9 UIgqW3jRt8Z