In the closing minutes Alex Bergantinos went for a fairly innocuous challenge with the former Liverpool man, but came in a little strong and smashed into the striker's back.
Players from both teams and fans at Riazor Stadium watched with apprehension as doctors worked on Torres, some putting their hands to their heads and others covering their faces.
The Atletico Madrid forward showed exactly why Manchester United are reportedly preparing a €100m bid for him in the summer with a stunning strike against Deportivo La Coruna.
Torres was later able to Tweet: "Many thanks to all concerned by me and for your messages of encouragement". "It's just been a scare. He will spend the night under observation". He's stable and conscious.
Players from both sides immediately called for medical attention when Torres hit the ground.
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After being attended for at least five minutes, Torres was subsequently taken off the pitch on a stretcher and then transported to a hospital in A Coruna.
Torres had entered the game as a substitute for Kevin Gameiro 20 minutes earlier.
Manager Diego Simeone said that he fears Torres broke his neck, per soccer writer Colin Millar, while noting that everyone was "worried" and "nervous". "We are only anxious about Fernando's health at the moment".
"They are unfortunate situations that happen in matches and we're hoping for the best for Fernando".
Hopefully Torres' condition improves, we'll keep you updated.