Thinking that Madrid will be able to come back is like Thinking  that Arsenal will not be playing in this game, I know anything is really possible in football but there are situations that when you look at critically  and consider that which is involved you just understand and conclude  that certain things are very likely not to happen  such as this, Really Madrid need 4 goals to have a proper comeback enough  to get them knocking Arsenal out  and they need all four goals in one match but again  Arsenal has got a better defence than Madrid does so I'm  wondering  how the magic will be done except if Arsenal gets to suffer red cards or have their key player injured which is almost not happening so it's an almost not possible task for Madrid but let's see, I will never say never because it's not over until it's actually over.