Coco Gauff's odds just flipped ahead of her US Open semifinal vs. Elena Rybakina

Coco Gauff was the favorite yesterday. Then the headlines started changing. Elena Rybakina secured the world No. 1 ranking. Her dominant serving numbers at this US Open came into focus. And Coco survived her quarterfinal, but with a double-fault problem she’ll need to clean up tonight. Now the prediction market has flipped ahead of their semifinal. I break down what changed and what Coco will need to do tonight.