Two collectors, one showdown — opening packs, chasing hits, and seeing who comes out on top in this ultimate MLB card battle.

This article was originally published on www.si.com/collectibles as Top 5 Biggest Slab Pack Pulls in October .

He's in a partnership with Topps, and opening packs on Instagram takes him back to his first job in sports memorabilia shop.

If you arrive at the card show the moment it’s scheduled to open, and you’re there to buy top-end modern and ultra-modern ...