Romain Grosjean confirmed on social media he underwent a medical procedure following last weekend’s Chevrolet Detroit Grand Prix.
The 40-year-old Swiss-born Frenchman 20th at the tight and bumpy 1.645-mile, nine-turn temporary street course, finishing 91 laps after his #18 Dale Coyne Racing Honda was punted by ECR’s Alexander Rossi entering Turn 3. It is unclear if that incident is when the contact occurred.
