On today's ep. of Poppin' Packs, Leigh opens a pack of '95-96 Fleer basketball cards with New York Times bestselling author Shea Serrano. Raised in San Antonio, Shea talks about what the '90s Spurs-Rockets rivalry was like, how Reggie Miller became his first favorite player, BJ Armstrong talkin' smack to MJ, and Shawn Kemp's dunks on Alton Lister and Chris Gatling.