I thought most high level sporting events warned spectators that they did so at their own risk? Very sorry for the young lady, but it is a risk that has to be taken into account. I remember a school mate who in 1950 went to a cricket match at Mosley. Back then it was a tradition for touring sides to play a pipe opener on the Moseley ground against a side of reasonable quality, called, IIRC the Duchess of Norfolk's XI or something like that that. The ground was close to the river and it was a challenge for batsmen to try and hit the ball into the the river (Keith Miller did it, I believe, when the 1948 Australians were over) . One of the WI batsman ( I think it was Everton Weekes, but it was a long, long time ago) went for it and launched an almighty six out of the ground. Birtles (we called each other by surnames, no idea what his Christian name was) turned, along with everyone else, to see if the ball made it It didn't. Instead, it struck a tree on the bank and rebounded, hitting Birtles in the face. He came to school on the Monday, proudly bearing a swollen face and closed up eye on the left side of his face, already shades of yellow. mauve and blue. Scar of war!
Watching any sport can be risky.
Mike