Warning: this vision may make you cringe pretty bloody hard.
One poor old ball boy at the US Open has copped a tennis ball straight in the gonads.
He was on the receiving end of a Venus Williams serve overnight when the ball dipped on him, clipping his left hand before smacking him right in his nether regions.
It's got a lot of Hans Moleman being hit by football about it, and looks like one giant load of nope.
As we said earlier: this vision is pretty painful.
Williams has one of the fastest serves on the tour, too, which doesn't make this any easier.
Credit to him for trying to keep on keeping on, taking a deep breath and regaining his composure, despite every single facial expression suggesting he was in a world of hurt.