He uses his fingernails instead of a pick, which is quite common, except instead of plucking strings upward individually, he can play more than one string at a time by stroking down --- and up -- with the backs of his nails, which allows him to play several notes at once.

CNN: Fleetwood Mac's 'Rumours' at 35: Still the 'perfect album'

But back came the leaders with Juan Mata stroking home a free kick just before the half time break.

CNN: STORY HIGHLIGHTS

With Leinster players queuing up to score however, Quins number eight Nick Easter was sin-binned for a deliberate knock-down, Contepomi stroking over the penalty for a 6-0 half-time lead.

BBC: Harlequins 5-6 Leinster