We can confirm the 18-year-old youth product has a swollen ankle from the midweek match against Southampton, when a shocking challenge from Oriol Romeu surprisingly went unpunished by the match officials.
Keen to help the team in an important match, Greenwood bravely played on through the pain until he was eventually replaced by Daniel James after 84 minutes at Old Trafford.
Solskjaer was annoyed by Romeu's 'tackle' and told reporters on Monday night the same challenge to his own ankle would have left him injured for a month.
Thankfully, Greenwood has youth and energy on his side, although the in-form goalscorer has not escaped unharmed, as Ole explained to our reporter Stewart Gardner in an exclusive interview that you can read in full on Thursday morning.