Top seed Rafael Nadal [ Images ] outgunned compatriot Alberto Martin [ Images ] 6-2, 6-4 on Thursday to set up an all-Spanish quarter-final with Juan Carlos Ferrero [ Images ] at the claycourt Swedish Open.

The French Open [ Images ] champion, playing in his trademark sleeveless shirt, dominated the first set but had to work hard in the second where he fought off several break points at 4-3 and at 5-4 when serving for the match.

"In the first set I played really well but I lost a little bit of my concentration in the second," said Nadal who is chasing his seventh title this season.

"That happens sometimes, I start really well and then my level goes down a little. I'm happy because I'm through to the quarter-finals without dropping a set."

Nadal expects tougher opposition from Ferrero, the 2003 French Open champion, who beat Guillermo Garcia-Lopez, another Spaniard, 6-3, 6-4.

"He's one of the best in the world on clay so I hope to play my best tomorrow. I will have to be aggressive," said Nadal.

Nadal has beaten Ferrero twice this year, in Valencia and in the Barcelona [ Images ] final where he beat him in straight sets.

"Tomorrow for me against Nadal it's going to be a lot of rallies," said Ferrero who last year finished out of the top 30 for the first time in five years.

"In Barcelona I played good, but he (Nadal) was amazing, he didn't miss a ball during the entire match."