Yeah 3rd tier Portuguese football I imagine not the worst level.
Found Padroense in Soccerway but he doesn't seem listed in their squad.
Then I released it was last updated in 2012/2013! Which will explain why one of their Brazilian forwards listed in link below is now age 46.
https://us.soccerway.com/teams/portugal/padroense-futebol-clube/11829/
where did you get third tier from?
From mrsmils comment above mine (sorry throwing MM under a bus!). I didn't bother to check.
I guess fact that no one seems to know about this David Koo (apart from Nic Robinson - Flying Kiwis), says he didn't perhaps achieve much in NZ, and/or he is really a Korean who came to NZ for a few years high school or something.
zerozero have him with a NZ flag though.