The author is @ionahbear
Official cover:

Summary:
Mackenzie West loves soccer. Her dad is the coach of her soccer team, the Sharks. When she goes to spend a day with her best friend Katie McCoy, she gets attacked by a shark while surfing, and loses her leg. Mackenzie experiences new struggles at school and on her soccer team.

Personal opinion:
I think there's a great idea behind this story. You can clearly feel Mackenzie's energy as she wants to get back on the field. Keep it nice @ionahbear because there is a lot of work to do, and I'm sure you'll get it going.