The 20-year-old has risen through the ranks at the club after a series of fine performances and has represented Ricky Sbragia’s side on a number of occasions in Premier League 2 this term.
The former England Schoolboys international set up Josh Bohui’s goal in September’s 1-1 draw against Reading at Old Trafford and netted the opener in December’s 2-0 victory over Middlesbrough at Leigh Sports Village.
A lively forward who is capable of exploiting space down the flanks, Sheffield-born Dearnley received a call-up to the senior squad in May 2017 as an unused substitute for the Reds’ 2-0 win over Crystal Palace on the final day of the Premier League season.