Jurgen Klopp has revealed how Pep Lijnders and Vitor Matos were the catalyst behind Liverpool's £49million capture of Luis Diaz.
And the Reds boss has not ruled out handing the new signing an instant debut in Sunday's FA Cup fourth round visit of Championship side Cardiff City.
Liverpool swooped for proposed summer signing Diaz last week after it emerged Tottenham Hotspur were closing on a deal to sign the 25-year-old ahead of the January transfer deadline.
Both Reds assistant manager Lijnders and elite development coach Vitor Matos had previously worked at Porto, with the latter having been at the club when Diaz was signed from Colombian side Junior de Barranquilla.
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And Klopp has given an insight into how Liverpool determine their transfer targets as he explained the role his coaching staff played in putting Diaz on his radar.
"We cannot watch all interesting players closely, me or the coaches; our scouts are doing that and that's what we have the department for," said the Reds boss.
"Very often we just get a hint that we should have a closer look at him or him and we do that.
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"That doesn't mean he's a player for us in the next transfer window but with Porto obviously it is different because of Pep and Vitor (Matos).
"I'm not sure but Vitor probably watches all Porto games and Pep a lot of them, and they were very early and told me, 'that's a very interesting boy there and we should have a closer look'. Since then we are watching him.
"It is part of the process. We cannot constantly watch the whole world but the club is pretty busy with that. If there's a good player or a real talent out there, we know him.
"We just have to make decisions on whether it is interesting for us or not, do we have somebody in that position or not, do we have someone coming up in that position, do we have a young player to follow on? All these kind of things. That's the process."
Diaz was on international duty with Colombia earlier in the week and flew to Paris as he awaited a work permit before arriving at the AXA Training Centre on Friday afternoon.
And asked if Sunday was too soon for the winger to make his Liverpool debut, Klopp said: "I don't know. If he had been here on Thursday he could have trained a little bit and I would have definitely considered it.
"Give me a second to meet him and to ask him how his last two or three days were!
"It's not easy to sit around in Paris waiting for the papers. It is not the best time in your life and doesn't help you with recovery from the intense period he had with two games for Colombia and massive travel.
"Let's have a look. I wouldn't say no because I would be excited as well about giving him a few minutes in a sold-out Anfield but let's see."
