Recent history hasn't been kind to Atletico Madrid when it comes to El Derbi Madrileño.
Every time they face their more illustrious rivals, they have to endure the same old story: no win against Real Madrid since 1999—14 years ago.
Fortunately, they can take some pride in their meetings against Los Blancos in Copa del Rey finals.
Four times they've met at this stage, and three times Atleti have won.
It's been some time though, as their most recent final meeting was in 1992. However, the 2-0 Atletico win took place at the Bernabeu—the same venue as this Friday's match.
Here are some of the key battles to look out for when the two sides get the 113th King's Cup final under way.