Andreas Pereira and Paul Pogba toy with Man City defence
Pereira and Lukaku are now team-mates at Manchester United with both players set to play a key role this forthcoming campaign.
The former spent last season on loan in La Liga with Granada, impressing despite their relegation to the second tier of Spanish football.
Lukaku, meanwhile, is the club's marquee signing so far.
The Belgium international had been tipped to join Chelsea at the start of the summer but instead swapped Everton for Manchester United in a huge £75million deal.
And Pereira has given a glowing appraisal of the Red Devils' new No9, hailing his sense of humour.
He's a funny guy, we get on well
Manchester United star Andreas Pereira on Romelu Lukaku
"I'm already friends with [Romelu] Lukaku," he said after United's pre-season win over Sampdoria on Wednesday.
"We both grew up in Belgium.
"He's a funny guy, we get on well."
Pereira is set to be named in Jose Mourinho's Premier League and Champions League squads for the forthcoming season.
And the 21-year-old has expressed his desire to earn Mourinho's trust.
GETTY
Romelu Lukaku has been praised by Manchester United ace Andreas Pereira
GETTY
Andreas Pereira wants to make the grade at Manchester United
Invalid email
We use your sign-up to provide content in ways you've consented to and to improve our understanding of you. This may include adverts from us and 3rd parties based on our understanding. You can unsubscribe at any time. Read our Privacy Policy
"I've had a good preseason; I've showed that I've learned during my time away on loan and I also have more to show," he added.
"The Real Madrid game was the one which I enjoyed most. But there's a good atmosphere in the group.
"I just want to make sure that I can show everyone at the training ground and inside the stadium what I can do.
"I want to continue my development and find a way into the team."
