The 19-year-old forward has earned praise for his natural goalscoring ability and clinical finishing after breaking into the United first team.
But Greenwood has puzzled many with his incredible ambidextrous feet, with United teammate Jesse Lingard admitting that he doesn't "know what foot he is."
United manager Ole Gunnar Solskjaer previously claimed that the England international is a "natural finisher," but he doesn't think Greenwood "knows which foot he uses the best."
Now, Greenwood has revealed that he used both of his feet when he was younger, but he believes his right foot was his strongest at that time.
However, the United star has now suggested that his left foot is "a bit stronger" after he came back from an injury that he picked up in an academy match.
When asked if he has a favoured foot, Greenwood told United's official website: "Good question -- I'd probably say my left.
"It used to be my right when I was younger. I used to use both when I was younger but used to use my right foot quite a bit more.
"Unfortunately, I got injured in a game in the academy and was out for six or seven months.
"When I was going back, I was not as strong as on the other foot and now think my left foot is a bit stronger, cutting in from the right."
Greenwood's impressive finishing has even led to comparisons with Robin van Persie, who won the Premier League title during his three seasons at Old Trafford.
The United forward admitted that he was flattered with the comparisons to Van Persie, saying it is "nice to have that little thing that people say."
Greenwood explained: "It's nice if people think I play like him and shoot like him a little bit.
"For an all-time great like him, it's nice to have that little thing that people say.
"I used to watch him at United and obviously at Arsenal as well. He's a good quality striker.
"I've watched a lot of football games and a lot of Premier League strikers and obviously pick up a few things and watch a few clips. It's a nice little comparison."
Featured Image Credit: Manchester United/PA
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