And though Macheda spoke glowingly of Rooney as a team-mate, his comments will be unwelcome at a time when the England forward is struggling to get his game together for club and country.
Related ArticlesSir Alex Ferguson: Chelsea have had easy startUnited eyeing up new SchmeichelWayne Rooney still hurting after allegationsSunderland 0 Manchester United 0Burst pipe in United changing roomRooney questions United omission'Rooney is a really great person, he always gives me advice, but he's a bit working class and vulgar,' Macheda said while in Italy with the Under-21 team.
Macheda, himself from an inner city background in his native Rome, also dismissed speculation he might join former side Lazio on loan to gain more first team opportunities.
'I want to improve in Manchester, when I'm more mature I'll be able to make choices.
"The rumours about Lazio please me but I don't think I will go,' the 19-year-old said.
In contrast, Italy Under-21 goalkeeper Vito Mannone is considering his future in England after failing to break through at Arsenal this season despite the ongoing problems in the position at the club, where both Manuel Almunia and Lukasz Fabianski shave struggled to convince as a first choice.
'It hurts to not play especially when the other two are not doing great,' Mannone said.
'I'll see, here the situation at Arsenal is not normal, I'd do six months on loan to play. AC Milan has been a dream since I was a kid.'