Premier League title challenegers Man City are considering a move for sought after Southampton defender, Virgil van Dijk, according to reports from the Daily Star.
The Netherlands international is impressive accross the board this season, which has caused links with both Man United and Liverpool to emerge ahead of the January transfer window.
The former Celtic man, who is rated at £30m, has not missed a single minute of Premier League action since joining the Saints from the Scottish champions last summer, and has been integral to their success over the last year-or-so.
Both Man United and Liverpool are in need of quick fixes at the back, with Mourinho persistently bemoaning his defensive situation and the Reds often looking un-assured in defence whilst the likes of Mane and Firmino are free scoring up top.
Guardiola, however, supposedly considers the 25-year-old as a replacement for Sky Blues legend and two-time Premier League champion, Vincent Kompany.
The Saints have become accustom to seeing their best players come and go over the past few seasons, whilst maintaining their progress, although this one could hurt the most.