If a unit with an attack/defend trigger (like Yasuo) is moved into combat after combat has started, does the trigger activate?

Ruling: "When I attack/defend" triggers are triggered the first time a unit gains attacker/defender in that combat, regardless of when they enter the combat.

Nuances:

• The trigger activates even if the unit enters combat mid-combat, as long as it's the first time that unit gains attacker/defender status in that specific combat