He earned a corner, somewhat controversially as the ball appeared to come off him last, as he continually pressed and chased down Brighton & Hove Albion's defenders in Saturday afternoon's 1-0 win.
"The incident started with the usual jostling between players at a corner but turned into a much more serious clash. He deserves praise for that".
Sky Sports tweeted on popular social media platform that 24 year old Lukaku will not miss those matches. "This appears to be one of petulance".
Although still comfortably United's top scorer with 12 goals to his name in 20 appearances across all competitions to date, the Belgium global, a £75m ($100.3m) summer arrival from Everton, has now netted in only one of his last 10 appearances at club level - a late effort in the 4-1 comeback defeat of Newcastle United on 18 November.
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He said: "In the last minute (against Brighton), he was fighting and running back like he was in the first minute, so I think it is also a mentality question". The shot ended up finding the back of the net.
"Didn't score, I don't care".
But former Arsenal and England striker Wright said there had been enough evidence for English football's governing body to act.
Losing Lukaku for crunch games with the Gunners and Pep Guardiola's league leaders would be a huge blow to United boss Jose Mourinho.
"I am not talking about a petulant reaction to a penalty-box wrestle with an opponent, but rather his performance".