Harry Amass is leaving no stone unturned to catch Michael Carrick’s eye this season, and the club have unintentionally helped him. It came as a shock to Man Utd fans recently when it was reported that Harry Amass was on the market for just £6m. Photo by Serena Taylor/Newcastle United via Getty ImagesShould Man Utd replicate the Andy Cole / Keith Gillespie deal and use Harry Amass to lower the price for Lewis Hall? Man Utd have Lewis Hall as their clear No. How much is Lewis Hall worth looking at this list of the most expensive full-back transfers of all-time?