Presumably Bernabe and Poveda are at the top of the pecking order, but obviously they’re a million miles away from Sane.
I'm not really thinking about replacing Sané with the kid, more replacing Mahrez's minutes in the games like Rotherham, Oxford, Burton, Newport, Swansea etc.
If he's going to play a bigger role to make up for Sané going, he'll get rotated out of those early cup fixtures.