Overview
- His death was announced on Dec. 6 via his official Instagram account, which said he died in hospital on Dec. 4.
- Antonicelli built an audience of more than 193,000 on Instagram for fitness content before using his platform to document treatment and raise money.
- He disclosed a diagnosis of chondroblastic osteosarcoma on Aug. 10, 2023, and underwent extensive surgery in December 2023 that removed his femur, knee and hip joints, and part of his quadriceps.
- Doctors later found metastases in August 2024, he received radiotherapy in Milan, his condition worsened in summer 2025, and he was hospitalized in November for uncontrollable pain.
- He promoted donations and sold hats with messages like "F--- Cancer" and "You're Not Alone," and a GoFundMe launched after his death has raised a six-figure sum for the National Cancer Institute of Milan, with reported totals varying.