Category Slug problems

Hi there, I am running into problems with renaming a category slug.

My parent category is “sports” and I wanted to create a sub-category under that parent called “hockey.” Well, while I was fiddling around I created “hockey,” but then I deleted it for whatever reason and wanted to re-create it, but now it won’t let me use the slug “hockey.” Instead it forces me to use the slug “hockey-sports,” under the parent “sports.” I don’t want that, I want my address to look like “sports/hockey/…” not “sports/hockey-sports/…”

Can anyone help me with this?

Thank you,
Cygy