No one could blame a Celtic player for wanting to leave - but, in this instance, the 18-year-old would be better off staying put.
You can understand why - the teenage sensation has had a terrific season for the Bhoys and, quite often, has looked like the only senior player within the squad.
In the Europa League earlier this season, Tierney was often the outstanding player as the rest of the Celtic team buckled heavily under the pressure.
Manchester City will always have one eye on the future and they also have a developing partnership with the Hoops, having loaned John Guidetti and Patrick Roberts to them.
You can see why anyone would want to leave Celtic right now, meanwhile, especially considering how much potential Tierney has - and the lack of potential among so many of those around him.
For Tierney, however, staying with Celtic would actually be the 18-year-old's best bet. At least for another season.
At Manchester City, Kelechi Iheanacho has been given a handful of chances this season. But what other youngsters have truly been afforded first-team opportunities?
Roberts is the perfect example. He could make it at City but needs time at Celtic first.
Of course, if Tierney signed for Manchester City and was loaned back, that might be the perfect solution. But so many examples of young British players failing at City, the Scott Sinclairs, Jack Rodwells and more, must serve at least as a warning to the young Bhoys star.