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U.S. Open champion Bryson DeChambeau got a taste of speed on Saturday, roaring around Indianapolis Motor Speedway in a two-seat IndyCar.

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.”

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

Before coming to Sunday's Indianapolis 500, Austin Pettijohn dressed appropriately — checkered flag shorts and an Indiana Pacers jersey. For the 32-year-old from nearby Franklin, Indiana, it just meshed as it did with so many others in this colorful race-day crowd.

And talk of Indianapolis, and it will almost certainly bring the world's most famous 500 Mile Race to the forefront of the mind and imagination. Some of the top drivers in the world have returned to Indianapolis on Sunday looking to make history and lay claim to one of the biggest racing prizes in the world.