How Long Does Fresh Sushi Grade Tuna From The Supermarket Last?

I ordered some yellowfin tuna and the local market just called to say it is ready for pickup and I am wondering how long it will last. Do I have to get it all eaten in a day? Or do I have a couple or even a few days to get it eaten? I think I read or heard once before that I can’t freeze it but I wanted to have a fun little party tomorrow with some friends over for a homemade sushi and japanese style party.
thanks for any help!
Bre

Can I Freeze Raw Sushi Tuna?

i bought raw sushi quality tuna from my local market. i was planning on making sushi tonight but i didnt end up doing so. it cost like 20 dollars so i dont want to just throw it out, and im going to be out of town for 5 days so i cant use it this weekend.
does anyone know if it will keep in the freezer for a while or if it will get gross and freezer burnt and basically not even worth trying?