personally I think 25% to 50% of the wage is rather a small amount t get.
In most cases the NT players will be the best man in their own team. The risk of lossing him for a few weeks is not worth half of his wage.
50% might do, but only if the wage is paid back 100% during injury which is caused by NT match.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.