Unclaimed Expired Evolution

I put 94 Gullit into the "Spur Yourself" Evo and completed all the Stage 1 challenges, but I didn’t claim the Evo because I was waiting to see if a better option would come along. The Evo is currently inactive but still shows the “Claim” button, and it expires tomorrow.

My questions are:
If I don’t claim the Evo before it expires, will the game auto-claim it for me, or will he stay as his base stats?
If I quicksell him while the Evo is still unclaimed, does it auto-claim before the sale?
If I quicksell and recover him after the evo expires, will he be his base stats or will it claim lvl 1? 

Has anyone had any experiences where they had an evo expire but had completed the challenges for the given level? Did it just go away or did u have to automatically claim it and could quickselling then recovering bypass that?