Nineteen-year-old Academy star Greenwood made his first team debut for Leeds as a second-half substitute in January's 3-0 loss at Crawley Town in the FA Cup third round.
The England under-19s international then suffered an injury setback but kept fans up to date with his progress on social media and the teen forward has now revealed he is back in training.
An Instagram story from the former Sunderland and Arsenal youngster posted on Monday afternoon showed an action photograph of Greenwood previously playing for United's under-23s together with the words 'nice to be back in training' and an hourglass timer.
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Thank you Laura Collins