That's not how she goes out, though. Vandeweghe left the building with hope for the future and having maintained her inner strength and personality. For the litany of robotic answers doled out in on-court Q&As, press conferences and pre-match yawners on ESPN, the tennis world simply has to be glad to have Vandeweghe.
Take this exchange:
Reporter: "[Karolina Pliskova] said that there are similarities in the speed of your shots, but otherwise, she wouldn’t put you two together, not even personally, and that you go for your shots and even if you miss by five meters, you don’t care, which isn’t her style. What do you make of her characterization of things?"
Vandeweghe: "Of my tennis? I don’t know. I don’t know what five meters means."
When it comes to Vandeweghe, Keys and US champion Sloane Stephens, the future bears the weight of promise and of expectations. Luckily for them, they're in it together. They may be close and they may be foes, but making it to the second week at any Grand Slam will only spur them on, safety-in-numbers style. For all her outspoken habits, keeping that company will only help Vandeweghe.
"When you look at CoCo, Madison, Sloane, you have three exceptional athletes," Chris Evert said during this US Open. "Then you compare them to [Angelique] Kerber and [Agnieszka] Radwanska and [Caroline] Wozniacki, the other Top 10 players, and it's like, these American women should be up there with them because of their athleticism. That's starting to click now."
Follow Jon on Twitter @jonscott9.