The striker is currently away on World Cup duty with Belgium following a memorable first campaign at Old Trafford, and scored twice in his country's 3-0 win over Panama in their opener on Monday.

Lukaku will be hoping to progress deep into the tournament in Russia, which would mean he would miss the Reds' pre-season return to the States next month.

But he recalled last summer's trip fondly during an interview with ManUtd.com before he departed to link up with Belgium.