Nadal once accidentally hit 13-yr-old ball girl, apologised to her with kiss

Former Spanish tennis player Rafael Nadal once accidentally hit a 13-year-old ball girl during his Australian Open clash with Argentina's Federico Delbonis. The twenty-two-time Grand Slam champion's return serve struck the girl on her head, following which he rushed towards her to check on her. The Spaniard apologised to her and planted a kiss on her cheek.