In terms of goalkeeper injuries, there is an issue we're looking into there and working to resolve.
Broadly in terms of injuries, they are below real life figures by quite a bit. While the injuries are unfortunate, they are the kind of injuries that regularly befall players. You mention they mostly happen in games and so reviewing the intensity of your play, particularly when winning, may be an area to consider. Even if training isn't too intense, the schedule of matches (particularly that Man City are likely to face) may be and managing players through that effectively can help mitigate injuries.