#4 Isco (Real Madrid)
With Isco's relationship with Real Madrid manager Santiago Solari deteriorating so rapidly, the Spaniard might be on his way out sooner than expected. Now that the January transfer window is just mere weeks away, unless their relationship can be healed soon, Isco is bound to be looking elsewhere to play his football for the remainder of the season.
Isco would slot into the City line-up well, and Guardiola would probably utilise him in the number 10 role due to his eye for goal.
A possible setback in signing Isco, however, is his £81m price tag. And if we're to be realistic here, that evaluation is probably going to be closer to £100m. Manchester City are a very wealthy club, though, so they could still possibly afford to bring him in, despite the huge amount asked for.
Rumour probability: 7/10
Isco is probably already on the lookout for potential new clubs to sign with in January, having been marginalised by Madrid's new head coach, Santiago Solari. The Premier League is always a tempting prospect for any world class player, and with Manchester City as the current rulers of the competition, Isco might be heading for the Etihad next month.