Donnacha O Callaghan of Munster and Ireland decided that with his shorts ripped and the lineout about to form, there was no time to wait for the trainer to bring on the new pair. The look on his face is priceless as he gestures to the ref and the players to continue with the game.
The unamused French ref disallows it though, and demands that some new shorts get brought on. Classic clip. One for the girls perhaps.