So young to be crippled

Name: Macy
Age: 4
Breed: Greyhound
Personality: Macy is a loyal headstrong determined dog with a heart of gold, she loves humans though her experiences are mostly negative. All her racing was mainly to make her owners proud and happy with her... But nothing was ever enough to get good long, or short, attention. Just a pat on the head was a dream for her.
History: Macy was a all time champ racer, one of the best you'd ever see probably. She had determination, speed, and a heart for winning. She was climbing to the top of the chain, tearing up the tracks and showing them what she was made of. Now to the excepted but though she was a legend everyone crumples eventually. It was a sunny day, the sun beaming down on everyone...the track was empty and from inside the boxes you could hear panting, growling, and whining. The doors opened and a red greyhound sped out in front of many others, her strides long and powerfully though she slowed falling back. She counties to stay back till the last turn, when it came she rushed ahead quickly leading the dogs and going ahead of the bunny they were suppose to chase. Suddenly the dog tripped falling over her head and tumbling down, she didn't get up. The other dogs pumbled across her body. She laid, something wasn't right and she knew it but after gathering her strength stood.

One week later

The vet said she wasn't ready to race yet but it didn't matter to them, no, they just wanted money. Greed drove them like a man steering a car...but to the gates of hell. Energetic and feeling ready Macy pawed at the starting gates and once they opened bolted, she wasn't pulling the last minute trick today. She felt good, no more laying around sick! Quickly speeding in front of all but Grave, he was a national champ and this seemed like it was going to be a run for the humans money as the two raced neck to neck both wanting that good treat and extra space for the night prize. Suddenly though Macy colasped, when she stood she took off but ran zig zaged her vision blurring, she felt like she faint when she ran straight into the paneling and everything went black. When she awoke she was at the shelter, her owner, a business man who own many award winning greyhounds had decided to retire her. He whinned looking about and when she stood fell, "It's not looking to good. Infected sir, I think we are going to have to amplify it." "What about the other front leg?" "I ran some test and that's where her cancer is at...it's so new and she has no symptoms. I think if we remove it as well she'll be fine once we get her a cart." "Alright but the bill for the cart is not going to be cheap." She listened to these strange voices as the people peered in on her.