Son is reportedly a target for Manchester United, according to CaughtOffside.
Note: This is currently a rumour. Nothing has been officially confirmed by the parties involved.

What has been reported
Bournemouth defender Marcos Senesi is expected to be a free agent at the end of the season, and he is a target for Manchester United and Tottenham Hotspur.
Why the link makes sense
Based on publicly known information, Manchester United operate in the Premier League. Any potential move involving Son would need agreement between the player, the selling club and the buying club, typically following standard transfer window procedures.
Official sources: Premier League • FIFA • UEFA












