Everton are reportedly making a move for Tosin Adarabioyo.
Everton's interest in the Manchester City defender is said to be 'much more advanced' than Tottenham Hotspur's.
Everton, who beat Manchester City 4-0 on Sunday, could inflict further damage on their north-west rivals by snapping up the 19-year-old.
The young centre-back is yet to feature on a regular basis for Manchester City and Celtic could take advantage.
Rangers manager Mark Warburton brought Jordan Rossiter and Joe Dodoo to Ibrox last summer.
Everton and Spurs are reportedly keen on Tosin Adarabioyo.
Tottenham Hotspur are not standing still when it comes to their defence.
The reported Tottenham Hotspur target is said to be confident of finding another top club quickly if he leaves Manchester City.
After playing 90 minutes in all but one of City's pre-season friendlies, Guardiola believes Adarabioyo is ready to make an impact this season.
Tottenham Hotspur are being linked with the Manchester City youngster.