I have close to 100 different Yaz signatures going back to his rookie year of 1961 through the decades to present. None of them are even close to this mess. It is being listed by a major Power Seller on Ebay. I don't believe even the novice collector would be naive enough to purchase this scribble.
Of course the argument could be "might be a rushed, in person version"
Absolutely no way, even rushed versions have some areas of consistency with known exemplars. This has ZERO.
Here is the link to the auction:
https://www.ebay.com/itm/354837788026?hash=item529dfaf57a:g:kf4AAOS...