#3 Toby Alderweireld
Toby Alderweireld has been absent from Tottenham's starting 11 in recent weeks after reportedly falling out with manager Mauricio Pochettino.
The Belgian has a £25.4 million release clause which can be triggered in the summer and there will surely be a number of clubs interested in acquiring his services.
As mentioned previously, United will be looking to bolster their back line this summer and could look to the commanding centre back to play next to Eric Bailly.
Alderweireld's physical presence and positional play could compliment Bailly's proactive style of defending pretty well and his experience could prove crucial for the United back line as they hunt for their first league title in 6 years.
A deal for £25.4 million in today's market is not particularly steep and should Manchester United pay the money, they would add a player with experience, proven pedigree in the Premier League, leadership qualities and good positional awareness.