Ancient Humor

[Flavius Clemens]

Still don't get it.

It's a pun on the rules for European knock out football competitions. Team A and B play two games, the one at A's home ground, the other at B's and the total score for both matches decides who procedes to the next round. If the total score is equal, goals scored away from home are counted as double. (If that still leaves the score equal they play extra time.) So away goals / gauls count double in Europe.