The clash of heads reverberated around the stadium, everyone watching feared the worse, but Fernando Torres was only looking forward to getting back to training on Friday.
The 32-year-old Spanish striker was rushed to hospital unconscious after being hit from behind by Deportivo La Coruna's Alex Bergantinos five minutes before the end of the game.
But after a night's rest and with serious injury ruled out, Torres left hospital again Friday and sought to reassure fans.
"Everything is fine and fortunately, in a few days, I will be able to train with the others again," Torres told reporters.
The former World Cup winner told how he remembered what happened just before the blow.
"Thank God, it was not serious," Torres said, adding how Bergantinos had gone to his hospital bed.
"Yesterday I was with Alex. He was worried but these are things that happen in football and can happen to anyone.
"By luck it was just a scare and now I am counting the days to getting back to training."
Players from both sides immediately called for urgent medical attention when he slumped to the ground unconscious.
Deportivo fans gave the former Spanish international a standing ovation of encouragement as he was stretchered off.
The striker sent out a Twitter message from his hospital bed just after midnight and the club also said there was no apparent serious injury.
"Thanks to all of you who were worried for me and for your messages of encouragement," Torres said. "It was just a scare. I hope to be back soon."
"A cranial and cervical CT scan carried out on Fernando Torres has ruled out that the Rojiblanco striker has suffered any alterations or traumatic injuries," Atletico said in a statement.
The club said that after leaving hospital, Torres would have to "observe a 48-hour rest."
Published 03 March 2017, 19:50 IST