Full of energy, Sebastián aspires to be a professional soccer player in the future.
![St. Jude patient Sebastián on the soccer field wearing his green uniform.](/content/sites/www/en_US/home/about-st-jude/stories/meet-our-patients/meet-sebastian/jcr:content/par-1/cnt_row_2123764106_c/par-1/cnt_column_140698578_595236107/par-1/image_v2.img.16.medium.jpg/1634143001888.jpg)
To play professional soccer has always been Sebastián's dream.
![St. Jude patient Sebastián showing his Green Machine Iron Man soccer medalion award.](/content/sites/www/en_US/home/about-st-jude/stories/meet-our-patients/meet-sebastian/jcr:content/par-1/cnt_row_2123764106_c/par-1/cnt_column_140698578/par-1/image_v2_304325841.img.16.medium.jpg/1634143118060.jpg)
Nothing prepared Sebastian’s parents, Belén and Andrés, for the day in June 2014 when they learned he had a rare cancerous brain tumor called a medulloblastoma.
![St. Jude patient Sebastián with head tilted and resting cheek to flat hands, looking into the camera from his hospital bed.](/content/sites/www/en_US/home/about-st-jude/stories/meet-our-patients/meet-sebastian/jcr:content/par-1/cnt_row_2123764106_c/par-1/cnt_column_140698578_273382541/par-1/image_v2_304325841.img.16.medium.jpg/1634143263493.jpg)
“We were devastated,” said Belén, Sebastián's mom. "Sebastián had always been a sweet, caring child with an adventurous heart. It was difficult to imagine he was so sick.”
Families, like Sebastián's, will never receive a bill from St. Jude for treatment, travel, housing or food.
![St. Jude patient Sebastián celebrating 'No More Chemo' with his smiling mother and father.](/content/sites/www/en_US/home/about-st-jude/stories/meet-our-patients/meet-sebastian/jcr:content/par-1/cnt_row_462763480_co/par-1/cnt_column/par-1/image_v2.img.16.medium.jpg/1634143357526.jpg)
At St. Jude Children’s Research Hospital, Sebastián's treatment included four rounds of intravenous chemotherapy, six weeks of radiation therapy and a year of oral chemotherapy.
Sebastián participated in a commercial for the 2021 St. Jude Thanks and Giving® campaign with actress Sofía Vergara
We have no words to describe St. Jude. Everything is designed so families only have to worry about their children.
Sebastián is now finished with treatment, in remission and returns to St. Jude annually for checkups.
![St. Jude patient Sebastián giving bunny ears with his fingers while smiling in the soccer stadium with his father and older sister.](/content/sites/www/en_US/home/about-st-jude/stories/meet-our-patients/meet-sebastian/jcr:content/par-1/cnt_row_462763480_co/par-1/cnt_column_140698578_936605232/par-1/image_v2_1918768386.img.16.medium.jpeg/1634140253010.jpeg)
Sebastián with his father and older sister
His favorite subject is math and he is currently enrolled in an advanced mathematics course. Sebastian also plays percussion in the band.
“He’s a really good student and very responsible,” said Belén.
![St. Jude patient Sebastián smiling while standing and giving a peace sign next to his mother, father and sister sitting on a mountainside park bench.](/content/sites/www/en_US/home/about-st-jude/stories/meet-our-patients/meet-sebastian/jcr:content/par-1/cnt_row_462763480_co/par-1/cnt_column_140698578_729158288/par-1/image_v2_1918768386.img.16.medium.jpg/1634232600191.jpg)
In addition to his dream of playing professional soccer, Sebastián expresses interest in becoming an engineer in hopes of “creating a machine that cures cancer in kids.”