Tortoise and the what???

Someone asked me what the Tortoise and the Hare reference meant in the previosu post:

The Aesopian tale proved the hare's cockiness was his downfall, while the tortoise surefooted, steady endurance made him the winner. In their second meeting, during a boxing match, the tortoise's endurance proved him a winner once more.

I might have to run this one as a shirt...