Mikayla Wilson of Spangle, Washington, was scrambling for the ball in her high school basketball game with 2 opposing players when she fell and briefly hit her head on the floor.
Kayla, as friends call her, barely remembers the incident.
" I remember being on the floor with a girl laying on me and then having to do the free-throw and that's about it."
Her parents recorded her play, and neither they, nor her coach, realized she was hurt.
The freshman player stayed in the game, and scored more points for her team.
But when the game was over, her father knew something was wrong.
Mike Wilson, her father, says, "A few minutes later, she turns around and says, 'who are those girls dressed just like I am, and why are they looking at me?' And that was her teammates she had just got done playing with."
Tests at the hospital confirmed Kayla had a concussion
In addition to memory loss, she is suddenly writing with her left hand instead of her right!
Doctors say by continuing to play, she deprived her brain of the blood & oxygen it needed.
"According to the doctor when the concussion occurred, that as all the neurons in her brain had discharged their electricity from the impact it as trying to rebuild the electricity in the neurons and because she was still exercising much of the blood that would have gone to the brain was being diverted to the bigger muscle groups," her father says.
Her memory is slowly recovering, but she is frustrated with her memory loss.
"I want to remember all my friends and team mates and stuff," she says with a sigh.
Her father adds, "Friends come up on a daily basis and say "do you remember yet? Do you remember when we did this? and they mean well but for her, when she's just searching for anything familiar, it's frustrating."
But doctors don't know whether the writing change are permanent.
For the time being, she's not playing, or even taking part in phys ed classes.
