Drivers took the green flag Sunday at Indianapolis Motor Speedway hoping to win the 109th Indy 500. Follow along for live updates.

Roger Penske delivered the command for drivers to start their engines Sunday at the Indianapolis 500, then watched one of his own drivers crash out before it even began.

Get all the news you need in your inbox each morning. On the red carpet at the Indy 500 Keanu Reeves 🏁: Actor Keanu Reeves attending Indy 500.

As they entered the main tunnel nearly five hours before the Indianapolis 500, a large group began a thunderous “Let's Go Pacers!” chant; The Indiana Pacers host Game 3 of the Eastern Conference finals against the New York Knicks a few hours after the 109th running of “The Greatest Spectacle in Racing.”

DeChambeau once hit a golf ball 221 mph with his driver. Exactly as fast as some of the drivers will be going in the Indianapolis 500 on Sunday.

NASCAR legend Jimmie Johnson shares Indy 500 photo with retired quarterback Tom Brady at Indianapolis Motor Speedway