Don't doubt Bianca winning against Serena. Of course Serena is the GOAT and has rounded beautifully into form at the right time to win the US Open, but if Bianca is playing at her best, she can take this. Serena's 2019 record is 20-5, while Bianca's is 44-4 (of which one loss was due to retiring due to injury so really only 3 losses). So Bianca is having a stupidly hot streak, which includes a 7-0 record against top 10 players. This is an epic great veteran versus rising star match-up. Hoping for a match for the ages.