Ball-playing centre-back Alderweireld has proven himself to be one of the best in his position in Europe over the past couple of seasons. The defender, who turned 30 earlier this month, has racked up almost 150 appearances for the Lilywhites and has played an integral role in helping the team establish themselves as title challengers under Mauricio Pochettino.
Tottenham Hotspur are facing a nightmare scenario this summer.
Alderweireld will be available for just £26 million - the value of his new release clause - this summer after the club chose to extend his contract back in January.
United have been keen on signing a top centre-back for a few transfer windows now and that hasn't changed even with Victor Lindelof's inspired form.
Nearing the end of his Tottenham stint?
His arrival at Old Trafford could coincide with Eric Bailly's departure.
The last thing Manchester United want is to have an ageing, declining and expensive player rotting in their reserves because they can't offload him.
The same report has claimed that United are leading Barcelona and Juventus in the race to sign the 30-year-old, with the Red Devils widely expected to secure his signature ahead of the 2019-2020 season.
Given Alderweireld's contract situation, there is a very strong possibility that he will be on the move this summer.
Spurs would undoubtedly have to spend big - whether that is possible, especially after the construction of the new stadium, remains to be seen.