Sitting on press row at Franklin Field, you can definitely tell that something big is going to happen today.
Parts of the stands that would be empty at this hour on Thursday or Friday have fans sitting in them, waiting for the big USA vs. the World races this afternoon.
And the air is a lot warmer than it's been the last two mornings. The forecast high in the mid-80's means a lot more shorts and a lot fewer jackets.
The first high school boys' 400-mter hurdles heat just started, which means it's time for you to re-join me in The Paddock for Twitter updates and live chatting.