I remember quite a few years ago one of our aircraft (not Ryanair) cut a corner on taxiing and put a mainwheel in the grass.
The captain (rather foolishly, in my opinion) got it out again using a hell of a lot of power. The main wheels were changed and one of them was found to have a large crack starting on the wheel rim.
Wheels and tyres should ALWAYS be checked after such an event.