SAMESHIMA Aya was perhaps spanked by SASAKI Norio,her coach during football/soccer game,London 2012 final.
I do not know why Norio did that,and if he spanked Aya or just touched her butts.
The way i see it,he might wanted to motivate her to play better or punish her for poor performance in this game or more simply push his luck;some would take it Sexual harassment or "Hand of God (goal)".
Anyway,Aya seemed to recieve a spanking in public.
＜References＞
http://livedoor.blogimg.jp/saitama_news_sokuho/imgs/d/4/d403eff8.gif
http://livedoor.blogimg.jp/fbn_2chfootball/imgs/2/b/2b8bd1a1-s.jpg