On lap 5, Christian Fittapaldi tried to make an inside move on Michael Andretti but Michael was able to hold him off. Kenny Brack, in the background, tagged along behind Michael and Christian for several laps and ended up finishing the race in 3rd place.
Unfortunately, Michael's car on the left is a little out of focus but that happens with a 500 telephoto at F4. I was so surprised that I captured this move on film that I had to watch a videotape of the incident several times to make sure I had shot what really happened.
The image was captured at bottom of the Moraine Sweep (3-2 on map).