Potential: Barca vs Madrid Copa

[BojanNo9]

If madrid and Barca both get to the next round of the copa, what are my chances of getting a single ticket anywhere in the ground if I go to the stadium on the day of the match? do remaining tickets go on sale in the days leading up to the game, if I kept checking online? I think I read on here that someone got tickets like that.

[ianr]

i kept checking online for the league game last year and got them 2 days before,i have booked my flights for the game in april and am hoping to strike lucky again.
Not sure how it works for the copa but should imagine there will be tickets avaialble