Relive the 109th Running of the Indianapolis 500, from pre-race surprises to Alex Palou's historic finish, with this collection of photos.

Marcus Ericsson had finished second to winner Alex Palou in Sunday's Indianapolis 500 before his Andretti Global car failed post-race inspection.

If you gotta go, you gotta go. That is what Conor Daly was likely thinking when he needed to go so bad that he urinated in his race suit with no other options left at the Indy 500.

Palou's victory in the Indianapolis 500 averaged 7.05 million viewers on Fox -- the largest television audience since 2008.

Los Angeles – Sunday's Indianapolis 500 had its biggest television audience in 17 years. Alex Palou's victory averaged 7.05 million viewers on Fox, according to Nielsen. That is the largest audience since 2008, when Scott Dixon's win averaged 7.25 million on ABC. That was also the first year of a combined open-wheel series.

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.

Indianapolis 500 runner-up Marcus Ericsson was penalized to the rear of the 33-car field along with Andretti Global teammate Kyle Kirkwood on Monday.

Halfway through the race and as of this writing, eight drivers were out of the race but drivers like Josef Newgarden, seeking his third straight Indy 500 win, and Helio Castroneves, seeking his recording-breaking fifth ever Indy 500 win, were still in the mix.

The Indy 500 took place on May 26, and the race was packed with high-octane excitement, as well as some participants getting in a bit of trouble. Not every competitor got off scot-free, and now, the folks in charge at the Indy 500 are handing out penalties.

LOS ANGELES — Sunday’s Indianapolis 500 had its biggest television audience in 17 years. Alex Palou’s victory averaged 7.05 million viewers on Fox, according to Nielsen. That is the largest audience since 2008, when Scott Dixon’s win averaged 7.25 million on ABC. That was also the first year of a combined open-wheel series.