We have two keepers. Both ate of about the same quality. One is a senior member of the squad.
It's really simple.
I see that some people really rate Robles, but it's just down to opinion. The guy doesn't stand out from Howard at all to me. I have seen him have just as many bad decisions than Tim while at the same time I haven't saw anything that demands him to he picked.
If I was the manager I would give Robles a run, just to see how it goes. Buy it's easily understandable why he sticks with his senior keeper.
This is Howard V Robles not Lukaku V Kone.