It was after constant back pain and headaches that Virginia Torrecilla underwent a medical examination.
When she was then diagnosed with cancer, she disappeared from the field.
Torrecilla underwent surgery at home in Spain and then underwent several chemotherapy treatments.
The Spaniard was back in training in March last year and today, almost two years after the announcement, she made a comeback on the football field in an Atlético shirt.
In the 85th minute, she replaced Silvia Meseguer in the Spanish Supercup final against Barcelona.
– För mig var detta väldigt speciellt, jag kommer aldrig glömma det, säger hon i en video på klubbens twitter.
Atlético Madrid förlorade matchen med 6-0. Men efter slutsignal samlades Barcelona-spelarna runt Torrecilla och lyfte upp henne. De kastade upp henne i luften flera gånger för att hylla hennes comeback samtidigt som fans ropade hennes namn.