When you talk about a football match on semifinals, how you call first game and second one? in spanish is "Ida" y "vuelta" but I need to translate that into english, working on spanish to english official document

Preliminary round? I have no idea google that and LMK lol.

It sounds right and is one of the first things that pops into my head.

imo it's "first leg" and "second leg"

not sure if milbur trolling

Hes not. But theirs diff ways of saying it.

First leg, second leg
Winner on aggregate of both legs

First leg and second leg and both result together select the winner who goes to the final match.