I think the Captain Pat Hurst made a mistake pairing the Korda sisters the first session, they didn't seem to be jelling.
Not sure if you're serious, but I'll respond just in case.
1. When paired in the 2019, the Korda sisters won their two matches by an amazing 6 and 4, and 6 and 5. Complete dominance. Do you think they forgot how to play with each other since then, even though they play together more frequently than any other pair of American golfers?
2. How do you evaluate whether a pair is "jelling", as opposed to simply not playing their best golf for one round?
3. Multiple reports said that Jessica Korda became ill on Saturday. Likely affected her play in that first round - and was the main reason she did not play the next two rounds.
4. The Kordas like playing together and had requested that they be paired together.
5. The only match where the Kordas were paired together, they drew the European's top pair - Maguire and Reid. Those two went 3-0 when paired together. The Kordas lost one down on the final hole. They certainly were not blown out.