Real Madrid will meet Atletico Madrid for the sixth time this season on Saturday knowing they are yet to win once.
Atletico Madrid host La Liga leaders Real Madrid on Saturday, aiming to extend their five-match unbeaten run against their near neighbours this season.
Atletico's record against their bitter rivals has been an excellent response to their defeat to Real in last season's UEFA Champions League final.
Real won 4-1 after extra time on that occasion but Atletico exacted a very minor form of revenge with a Spanish Super Cup success - which came after a 1-1 draw at the Santiago Bernabeu and a 1-0 win at the Vicente Calderon.
A league meeting followed in September, with goals from Tiago and Arda Turan giving Atletico a 2-1 win at the Bernabeu.
And Diego Simeone's men were responsible for knocking Real out of the Copa del Rey's last 16 last month, winning 2-0 at home before a 2-2 draw in the return leg ensured their progression.
It all points to another mouth-watering encounter between the two sides.
Cristiano Ronaldo, scorer of 28 Liga goals this season, will return from suspension for Real, who lead the league by four points - and are seven clear of third-placed Atletico.
They will be without James Rodriguez, though, after he fractured a metatarsal in Wednesday's 2-1 triumph over Sevilla in Madrid. Luka Modric (thigh) will also miss out.
James scored in the win, as did Jese Rodriguez, but the absence of the Colombian star is a significant blow in a clash against fresher opponents. Atleti did not play in midweek.
As always, there is no shortage of motivation for both sides, but Atletico defender Diego Godin said his team's excellent recent record against Real counts for nothing.
"We want to win - we always want to win. Even more against Real Madrid," he told reporters.
"It's a different match and just because we won the previous matches doesn't mean we'll win this one.
"We must plan it well, follow the path we're on and that's what's going to bring us closer to the result we want.
"It's an important match against a direct rival, because of what's at stake in the league.
"Playing at the Calderon, with our people, we aspire to win."
Godin is well-versed in Real's threats and said his side have spent plenty of time working with the ball in a bid to avoid costly errors or slip-ups.
"We're working on countering the strengths of Real Madrid," he added.
"One of them is the counter-attack, of course.
"They play with very fast people at the front, very fast and very precise.
"We'll try to be careful, especially when we have possession of the ball, because when they steal it, they are the most dangerous in the world."
Fernando Torres scored both goals in the 2-2 second-leg Copa draw in Madrid last month and could be restored to the starting line-up after being an unused substitute in Atletico's 3-1 win at Eibar on Saturday.
Mario Mandzukic bagged a brace on that occasion, while Antoine Griezmann netted a seventh-minute opener. Captain Gabi missed the match through suspension, which has now been served.