The Manchester Evening News says the pair are set for loan moves to the Championship this summer.
Harrison joined up with Marcelo Bielsa's squad at Leeds last season as the Yorkshire club pushed for promotion before being defeated by Derby County in the play-off semi-finals. The 22-year-old is expected to return to Elland Road for another season, and could join in time to feature on the Championship club's pre-season tour where they take on United, whose academy Harrison left to move to the United States back in 2010.
He could come up against Smith when Leeds take on QPR as the City academy product is set for a move to the West London club. After impressing in the youth teams at the Etihad, the versatile midfielder went to Dutch side FC Twente where he played an important role in their promotion back to the Eredivisie.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!