Match ends, Real Madrid 1, Atlético de Madrid 1.
Cristiano Ronaldo scored in a 10th straight game for Real Madrid - but they were held to a derby draw by Atletico Madrid.
Real had the better chances and Marco Asensio and Marcelo hit the woodwork at 0-0.
Ronaldo volleyed home Gareth Bale's left-wing cross for his 20th goal in 10 club appearances.
But Antoine Griezmann equalised on the rebound after Vitolo's shot was saved by Keylor Navas.
The result keeps second-placed Atletico four points above Real - but 11 points behind leaders Barcelona, who beat Leganes 3-1 on Saturday.
Ronaldo was surprisingly replaced by Karim Benzema for the final 26 minutes, perhaps with Wednesday's Champions League quarter-final second leg against Juventus in mind.
Real won the first leg 3-0 in Turin, with Ronaldo scoring twice, including an excellent bicycle kick.
The Portuguese has now scored 26 goals in his past 14 games for Real and Portugal - and 40 for his club this season in 37 matches.
"We've got a lot of games and from time to time he has to rest," said Zidane. "He's clever and there are times when you have to rest. Nowadays he needs it and every time it does him good.
"I'm happy with the match and how we performed because we clearly deserved more. It was a shame we didn't get more from it but we could have even lost the game at the end."
- 17VázquezBooked at 88mins
- 23KovacicSubstituted forModricat 72'minutes
- 8KroosBooked at 14mins
- 20AsensioSubstituted forIscoat 72'minutes
- 7Cristiano RonaldoSubstituted forBenzemaat 64'minutes
- 20Torres Belén
- 19HernándezBooked at 89mins
- 23Machín PérezBooked at 17minsSubstituted forCorreaat 61'minutes
- 5ParteyBooked at 34minsSubstituted forGameiroat 82'minutes
- 18Diego CostaSubstituted forFernández Arenasat 71'minutes
- 14Fernández Arenas
- Javier Estrada Fernández
- Shots on Target
Second Half ends, Real Madrid 1, Atlético de Madrid 1.
Foul by Luka Modric (Real Madrid).
Koke (Atlético de Madrid) wins a free kick in the defensive half.
Attempt missed. Sergio Ramos (Real Madrid) header from the left side of the six yard box is high and wide to the left. Assisted by Isco with a cross following a corner.
Corner, Real Madrid. Conceded by Jan Oblak.
Attempt saved. Sergio Ramos (Real Madrid) right footed shot from outside the box is saved in the top left corner.
Isco (Real Madrid) wins a free kick in the attacking half.
Foul by Stefan Savic (Atlético de Madrid).
Lucas Hernández (Atlético de Madrid) is shown the yellow card for a bad foul.
Gareth Bale (Real Madrid) wins a free kick on the right wing.
Foul by Lucas Hernández (Atlético de Madrid).
Lucas Vázquez (Real Madrid) is shown the yellow card.
Lucas Vázquez (Real Madrid) has gone down, but that's a dive.
Attempt missed. Toni Kroos (Real Madrid) right footed shot from outside the box is too high.
Daniel Carvajal (Real Madrid) wins a free kick on the right wing.
Foul by Koke (Atlético de Madrid).
Attempt missed. Daniel Carvajal (Real Madrid) right footed shot from the right side of the box misses to the left.
Marcelo (Real Madrid) wins a free kick in the defensive half.
Foul by Diego Godín (Atlético de Madrid).