As a collector with over 40 years of experience I am confident this autograph is authentic. I have no reason to believe the listed item isn't authentic. If I had any doubts I wouldn't list the card for sale. That said, if any autograph would fail JSA authentication a full refund will be provided. Below is a summary of the information I have about the autograph.

This autograph was purchased from reputable ebay dealer AUTOGRAPHDEN in a huge lot. I already have this former players autograph in my collection so this is your chance to acquire my dupe at a great price. 

If you have any concerns about the authenticity please let me know. I'm not on ebay to take advantage of anyone or to cheat anyone out of money. I'm here to help others grow their collection by selling items (mostly duplicates) from my collection so I have funds to continue to grow my personal collection.

Due to players handling the cards when signing, I figure pretty much all cards have some type of minor flaw. Therefore, I list all autograph cards in Excellent condition. Please see the scan to determine your grade for the card.