The scene: Sunday's match hosted by Atletico Madrid against Cristiano Ronaldo's Real Madrid.
As you can see, Ronaldo trots to the sideline to retrieve a ball to put back in play, but the ballboy, sensing a chance to further delay Real Madrid's comeback attempt -- Atletico was leading 2-1 at this point -- gave Ronaldo the ol' okie-doke.
A shrewd move, to be sure, but also a show of poor sportsmanship.
Ronaldo got the last laugh, however, scoring a late equalizer to avoid defeat. The game ended in a 2-2 draw.