How to specify a path with all possible subdirectories in routing?

Question

symfony

Tried like this:

bgg:
    path:     /foo/{any}
    defaults: { _controller: MyBundle:Default:bgg }
    methods:  [GET, POST]

Works for /foo/bar, but does not work for /foo/bar/far.
How can I specify a route so that the controller receives all requests whose uri starts with /foo/ ?