Nick Kyrgios finished off his 1st round BOSS OPEN match against Jiri Lehecka with an under-arm serve and it left many people stunned.
It was his first match back from his tennis vacation and he played rather well to take down Jiri Lehecka in straight sets. The Australian opted to finish off the match in style by doing an under-arm serve tweener that left the crowd amazed. Check it out below.