Go to pro exotics website and you'll see.. It's one of my favorite morphs.. It's a desert enchi.. I've been looking at them for quite some time..

http://www.proexotics.com/currently_available.html

And if that isn't what you saw, then it wasn't an actual Tiger ball..

In the UK as a matter of fact, and even some people in the USA, they are calling some "normal" tiger stripy looking balls "tigers" but they are not the actual Desert/Enchi.