Injecting context into controller?

I’m toying with my own PHP micro-framework. I’m trying to make it both simple and easy; explicit but not verbose. (Good luck to me!)

For testability I have abstracted the Superglobals so that I have full control of them in my tests. Currently they are passed as a parameter to the controller action. Would it make sense to have them injected into the controller instead? It might be simpler, but it is less explicit.