Card Identification Forum

So I'm trying to find where this card belongs and am coming up empty.  I thought it might go in the 2013 Panini Court Kings set somewhere (as an insert or promo) but couldn't find anything.  I did some digging and according to another site, it was a promo set from the Panini National Sports Card Collector's Convention.  The only set I could find had all football players.  Can anyone help or add the checklist if it's not somewhere on the site?  Thanks in advance.  I bought this card off COMC and don't collect many basketball cards, but got this one because he played my alma mater in the Missouri State High School Basketball Championships a few years back (he smoked us) and wanted a couple of his cards.  Thanks.

Here's the base set: www.tradingcarddb.com/ViewSet.cfm/sid/83837/2013-Panini-National-Sports-Collectors-Convention

An insert set needs to be added.  Here's the most complete checklist I could find: www.cardboardconnection.com/other-sets/2013-panini-national-sports-collectors-convention-trading-cards

Thanks, I thought it might go in there somewhere, but 90% of the set is football and that confused me.

Though after looking at that I'm more confused to be honest because its listed under Diamond Kings and my mind is mixing up wires, I don't see how it fits.  I guess the insert set could be called Kings and could cover all sports. 

I agree.  It should be just "Kings" since it includes "Gridiron Kings", "Ice Kings", "Diamond Kings", "Court Kings"