Manchester United fullback Luke Shaw is being linked with a shock defection to Manchester City.

Shaw's future at United remains clouded, despite recent positive reviews from manager Jose Mourinho.

And The Sun says City boss Pep Guardiola is monitoring developments closely.

Guardiola has been given the green light to get FOUR key players and make City title challengers after missing out this season.

He wants a left-back and is looking at Monaco's Benjamin Mendy and Shaw from city rivals United as suitable candidates.

The fallen England international has also been linked with Jurgen Klopp's Liverpool this season.