Double Olympic champion Remco Evenepoel says he will “come back stronger” from surgery after breaking multiple bones in a crash.

The 24-year-old Belgian sustained rib, shoulder blade and hand fractures in a crash during training in Belgium on Tuesday.

He also suffered lung contusions, dislocated his right clavicle and tore several ligaments after colliding with the open door of a postal vehicle.

“After a scary accident on training yesterday, I underwent surgery last night and everything went well,” Evenepoel wrote on Instagram on Wednesday alongside a photo of him with his right arm in a sling.

"It’s going to be a long journey but I’m fully focused on my recovery and I’m determined to come back stronger, step by step.