Today's front-page headlines from Marca, AS and Mundo Deportivo.
Two teams that never give up
Sampaoli attempts a feat that no-one has ever managed, coming from 3 goals down to defeat Real Madrid
Madrid, a game away from 40 matches unbeaten
Zidane leaves Modric and Ronaldo in Madrid
Sampaoli includes everyone, includes new signings Jovetic and Lenglet
This works like this: great goal from Messi - magical free-kick sees Barca edge through
Alcorcon through to the quarters!
Tiago wanted to go to China and the club stopped him going
'The treble is an objective' - Zidane dares to say the taboo word
Both ambitious managers reserve players for Sunday
Sampaoli doesn't have Mariano, N'Zonzi, Vazquez, Real leave Ronaldo and Modric in Madrid
Messi lit the light - another great free-kick sees Barca win, competition opens two dossiers against Pique
Alcorcon make history as they make the quarters
Villarreal exit Copa
Alaves suffer but progress
City could have broken anti-doping rules - FA opens investigation
Triumphal reaction
Barca progress to quarters after Athletic game not suited for the faint-hearted
The trident all score for the first time since 17 September
Zidane without Ronaldo and Modric - also without injured Bale, James, Isco, but confident of progression
City accused of breaking anti-doping rules
