Newcastle have already suffered a massive talent drain this summer, selling Anthony Gordon, Sandro Tonali, and Bruno Guimaraes for a combined £244 million.
Unwilling to lose any more integral squad members, the club informed Manchester United that Hall is not available under any circumstances. Newcastle hold a strong negotiating position because his contract runs until 2029, and his recent return to the international setup has significantly increased his market valuation.
Nevertheless, the club are fully aware that several players are deeply concerned about the current direction of the project. After finishing 12th in the Premier League last season and missing out on European qualification, Hall views a switch to Old Trafford as a necessary step.