The two teams were really competing out there, they had all worked up a what?\nOptions:\n- anger\n- sweat\n- defeat\n- fight\n- aggression
Let's think step by step.
sweat
The two teams worked up a sweat in striving hard to defeat in a game.

To work up a sweat is to perspire due to strenuous physical activity.

.

The final answer: sweat