MADRID, Nov 1 (Reuters) - Real Madrid midfielder Ruben de la Red said he could not remember anything about his collapse in the 3-2 defeat at third-tier Real Union in the King's Cup.
The Spanish international was running back towards the halfway line in the 13th minute of the last-32, first leg tie on Thursday when he suddenly fell face first and lay motionless.
Medical staff moved quickly and the 23-year-old showed signs of movement as he was carried off on a stretcher.
De la Red regained consciousness in the dressing room and was taken to a local hospital where he stayed overnight under observation before returning to the capital on Friday.
"I can't remember a thing, only the move beforehand, and then I woke up on the stretcher," de la Red told Saturday's edition of Marca newspaper.
The incident evoked memories of the death last season of Sevilla midfielder Antonio Puerta, who collapsed during a league match and died several days later due to a heart condition.
Tests on De la Red showed nothing untoward but he will rest at home this weekend as a precaution and will miss the champions' Primera Liga match at Almeria on Sunday, de la Red told the club's web site (www.realmadrid.com).
"A lot of people have called me, I didn't understand all the commotion but now I have seen the footage I see why they were alarmed," he said.
"Fortunately I feel quite well and I want to thank all those who were worried about me and the messages of goodwill I have received.
"I am going to ... watch the match against Almeria on television. They are three important points we need and we are sure to win. The team is strong and motivated."