Madrid - Rafael Nadal will aim to keep his unbeaten start to the clay season going when he meets Novak Djokovic for a 50th time in the Madrid Masters semi-finals on Saturday.
Nadal is now 13-0 on clay this year as he swept aside Belgian ninth seed David Goffin 7-6 (7/3), 6-2 much to the delight a boisterous home crowd under the roof on the Manolo Santana centre court.
Djokovic had an even easier day as he moved into the last four without hitting a ball on Friday as Kei Nishikori withdrew with a wrist injury.
The Serb has a marginal 26-23 head-to-head record against Nadal.
However, the two haven't met for nearly a year during which time Djokovic's form has dramatically dipped.
"It's going to be a very tough match against one of the best players in the history of the sport," insisted Nadal.
"I've been playing at a high level for many weeks, but I know tomorrow is a day when either I'll have to play really well or I'm not going to have many chances."
Nadal eased past Goffin 6-3, 6-1 in their only previous meeting on his way to winning the Monte Carlo Masters last month before also lifting a 10th Barcelona Open.
And only poor returning on his break point opportunities denied Nadal just as convincing a scoreline as the Spaniard took only two of his 14 chances.
The 14-time Grand Slam champion had break points in the fourth and sixth game of the first set, but had to settle for breaking Goffin's resolve in a tie-break.
Nadal finally broke in the third game of the second set before having to stave off four break points on his own serve to consolidate his lead at 3-1.
The level of play from both players rose in a remarkable game with Goffin serving at 2-4 down as he kept Nadal at bay despite facing four break points, including one incredible cross-court backhand as he ran back to the baseline after being lobbed.
Nadal wasn't to be denied, though, as he broke once more and served out to seal victory after exactly two hours on court.
On the other side of the draw Uruguayan Pablo Cuevas advanced to his first ever Masters series semi-final by outlasting German wonder kid Alexander Zverev 3-6, 6-0, 6-4.
The Uruguayan will face Dominic Thiem in the semi-finals after the Austrian swept aside Andy Murray's conqueror Borna Coric 6-1, 6-4.
In the Women's Madrid Open, defending champion Simona Halep cruised back into the final for the third time in four years with a 6-2, 6-3 success over Latvia's Anastasija Sevastova.
"I heard that I am the first player who does three finals here this tournament," said Halep.
"I feel like (at) home here.
"The crowd is supporting me all the time. The courts fit me. I feel that the altitude is helping me also."
The Romanian reeled off five straight games to close out the opening set.
Sevastova hinted at a fightback early in the second as she got out to a 3-0 lead.
But Halep bounced back in emphatic fashion to win the last six games for the loss of just 14 points.
Halep will face in-form Frenchwoman Kristina Mladenovic, who overcame Svetlana Kuznetsova 6-4, 7-6 (7/4), to make her third final of the season.
Results from the ATP Madrid Masters/WTA Madrid Open on Friday (x denotes seeding):
Novak Djokovic (SRB x2) bt Kei Nishikori (JPN x6) - retired
Pablo Cuevas (URU) bt Alexander Zverev (GER) 3-6, 6-0, 6-4
Rafael Nadal (ESP x4) bt David Goffin (BEL x9) 7-6 (7/3), 6-2
Dominic Thiem (AUT x8) bt Borna Coric (CRO) 6-1, 6-4
Simona Halep (ROM x3) bt Anastasija Sevastova (LAT) 6-2, 6-3
Kristina Mladenovic (FRA x14) bt Svetlana Kuznetsova (RUS x8) 6-4, 7-6 (7/4)