And away in Madrid sterling will still be getting the ball on the half way line with his back to goal. Will be needed more in defensive role. So don't think he should start ahead of yaya who can control ball and keep possession while under pressure.
That's all well and good but how much possession and control do you think we're likely to have at the Bernabeu? Even with Yaya in there they are still superior to us in this aspect so our best bet will be to try press and counter like we did in Paris. Yaya is not suited to this type of game.