Arteta claims arsenal must keep star striker under any circumstances

I think there may be some confusion here!

As far as I know, there is no recent quote from Mikel Arteta claiming that Arsenal must keep a specific star striker under any circumstances. It's possible that you may be thinking of a different player or a different quote.

If you could provide more context or clarify which player you are referring to, I'd be happy to try and help you find the information you're looking for!