The Belgian, an effervescent force in midfield over the last few weeks, was forced off during the first half of Belgium's 4-3 win over Bosnia and Herzegovina last weekend. "He has gone back to Manchester United".
Liverpool suffered a major injury blow when they learned that they would be without Sadio Mané, who will miss six weeks with a hamstring injury suffered while on global duty with Senegal this week, but rivals Manchester United have had their own injury issues to worry about.
"I think they can afford to lose Lukaku more than Matic because I don't think there is a similar replacement to Matic". We don't cry with injuries.
Manchester United manager Jose Mourinho insists Marouane Fellaini's absence is "no problem" for the side ahead of Saturday's visit to Liverpool. We may cry with the process that leads to the injuries but we don't cry with the injuries.
"You can say we have not played one of the top five teams yet".
Fellaini had been in fine form heading in to the worldwide break and scored twice during the 4-0 win over Crystal Palace last time out so many thought the news would come a disappointment to Mourinho.
'If he doesn't play, I will play another one'. We have our objectives for the season, we know where we want to go and how we have to go.
He's become an important part of Mourinho's plans, but the Portuguese isn't anxious about players missing through injury. We lost players last season.
Victory against Liverpool, who are without Sadio Mane after the forward was injured playing for Senegal, would mean United's best ever start to a Premier League season.
It has not yet been officially confirmed how long Fellaini will be out of action for but he is expected to definitely miss Manchester United's crunch clash with Liverpool at Anfield on Saturday lunchtime.