We didn't offer a contract to Kevin who is widely seen as a PL legend, not just a City one.
The players have contracts, we can't force them to leave.
Gundo in particular was fit and available all the time. He was more valuable to us than Stones or Ake who played less minutes combined. It's not his fault we had many injuries and he had to play more games than planned. But he did well in the 2nd part of the season, helping us to win 40 pts from 19 games and finish 3rd.
If he stays, we may not register him for the CL. If we are honest with him that we can't register him and he chooses to stay, so be it. He's a legend.