The striker finally completed his record-breaking signing last week, finally giving Conte his top transfer target.
Lukaku did not play in any of Manchester United’s pre-season matches, which has left the 26-year-old’s behind the rest of his teammates in terms of fitness levels.
‘It’s hard – it’s different’ Lukaku said. ‘In England, it’s a lot of work. But over here, it’s real work.’
They are comments that are likely to dismay the United hierarchy after Lukaku’s indifferent spell at Old Trafford. The Belgium international joked that his diet at Inter is now merely salad.
‘I didn’t come here to live,’ he added. ‘I came here to help the team achieve something.’
His national team manager Roberto Martinez also claimed Lukaku had to leave United for the sake of his career.
‘The link between Romelu and Manchester United simply had come to an end,’ Martinez told Het Laaste Niewus.
‘He needed fresh air: he’s found it at Inter and joined a very ambitious club.’