The 19-year-old joined the Reds from Fulham in a £5million deal and was part of Jurgen Klopp's squad on the pre-season tour of Asia.
Speaking to The Athletic, Fabinho has revealed how he was getting confused in training following the arrival of the highly-rated Portuguese teenager.
Fabinho has had various nicknames over the course of his Anfield career. Jurgen Klopp called him 'Dyson' for his ability to hoover things up on the pitch, and Liverpool assistant Pep Lijnders has even dubbed him as 'The Lighthouse' for his direction.
The 28-year-old has revealed now, though, he is called 'Flaco' by his teammates, which translates into Spanish as thin or skinny.
"With Fabio Carvalho joining us this summer, everyone has been shouting 'Fabio' in training and I'm always looking around thinking they are talking about me," he said.
"So now they've said, 'Right, Fab, you're now just Flaco, and he's Fabio'. I'm okay with that."
Fabinho also recalled the time he tried to convince Sadio Mane, who left the club to join Bayern Munich, to stay at Liverpool.
"At the end of the season, I spoke a lot with Sadio. He told me about the situation that he could leave," Fabinho added.
"I was always saying to him, 'Come on Sadio, stay here. You can win the Premier League and the Champions League right here, don't leave'. But I think he had already made his mind up. We had to respect that.
"Sadio had a really good story in a Liverpool shirt. He played for six years here and during that time he won everything you can win and he decided that he wanted a new challenge. That's okay.
"After the parade in Liverpool, everyone said goodbye to him. We knew there was a good chance he would be leaving. I always kept some hope that he would still stay but then it was all confirmed.
"Losing Sadio is a big loss. He was one of our best players but it's something that we can't change. We have to deal with it. Now other players have to step up and take on greater responsibility."
CSKA Moscow 
FC Rostov 
Leicester 
Chelsea 
Valencia 
Betis 
Dynamo Kyiv 
Chornomorets Odesa 
Verona 
Inter 
Bayer Leverkusen 
FC Heidenheim 
Borussia Dortmund 
SC Freiburg 
VFL Wolfsburg 
Union Berlin 
Arsenal 
Nottingham Forest 
Everton 
Brentford 
Spartak Moscow 
Lokomotiv Moscow 
Rangers 
Dundee Utd 
Atletico Madrid 
Alaves 
Lens 
Marseille 
Ingulets Petrove 
Shakhtar Donetsk 
AC Milan 
Juventus 
ST Malo 
Bordeaux 
Manchester City 
Tottenham 
Eintracht Frankfurt 
Werder Bremen 
Girona 
Espanyol 
Feyenoord 
Heerenveen 
ST Etienne 
Montpellier 
Grenoble Foot 38 
Heart Of Midlothian 
Celtic 
Reims 
Lyon 
PSV 
Groningen 
Celta Vigo 
Barcelona 
Benfica 
Estrela Da Amadora 
Sparta Rotterdam 
AZ Alkmaar 
Southampton 
Liverpool