The phrase 'wearing heart on your sleeves' originanted in Britain. Perhaps. But what we have seen so far at the London Olympics, the athletes have taken it far more seriously, but with an interesting twist. Or shall we say a 'nail-biting twist'.

Some of the female athletes have been spotted donning their national flags on their nails.

US tennis star Venus Williams though does not have the flag, but she surely has all the colours of the US flag. (AFP Photo)

Athletes wear patriotism on their nails