Well, this isnt true...is it?
He dropped Al Habsi for the league AND the cup. Robles was their number one keeper for the back end of the season.
League Apps - 9
Cup Apps - 4
So you're missing the point. Howard IS our undisputed number 1, so therefore why wouldnt we play him now we are playing against a top side?
Well yes it is true isn't it. Second string keepers rarely play except in cup competitions, Al Habsi being dropped because he was performing badly is such an exception.
This season in the league Howard has been the keeper throughout, Robles' only chances have come in cup games. That proves the point entirely.
Martinez isn't just looking at the short term of playing the best player every single game, he's also casting his eye toward the future, and no player will develop unless they get game time.
Nobody complained about Ross Barkley getting chances last season even when his performances were occasionally poor, because they knew he needed time on the pitch. This is no different for Robles.
There's also the argument that Robles has been responsible for us getting to this cup quarter final so he deserves to keep his place, he's not made any big errors in the FA Cup to date has he ?