What does "draft" refer to?

Question

Batman failed to recruit Aquaman:

Batman: I found him. He said no.

Alfred: So the draft stands at naught for two? Maybe a man who broods in a cave for a living isn't cut out to be a recruiter. Hmm?

What does "draft" refer to?

Answer 1

It's a sports metaphor. Batman is trying to "recruit" heroes to his "team," and it's not going so well. (He's zero for two attempts so far.)

A draft is a process used in some countries (especially in North America) and sports to allocate certain players to teams. In a draft, teams take turns selecting from a pool of eligible players.

_{source: Wikipedia}