The 28-year-old had started the day in the race leader’s pink jersey but suffered a spectacular head-over-heels fall on the rapid descent of the Colle dell’Agnello.
That cost him a couple of minutes and eventually the race lead as he struggled to the finish, with blood dripping from his elbow. After the race he was taken to the hospital in Briancon by ambulance with injuries to his elbow, knee, and ankle.
He underwent X-rays where the rib fracture was discovered. “[Kruijswijk] has a small rib fracture and is struggling with pains in his foot and side. New update, tomorrow morning,” said his team on Twitter.
Saturday’s penultimate stage is a tough one in the mountains with three peaks at over 2,000 meters (6,562 feet) to scale.
Kruijswijk is third overall, just over a minute behind race leader Esteban Chaves.