Sydney Sweeney is seemingly — and subtly — hitting back at swirling commentary about her stripped-down ad campaign for sports betting site Novig. “It’s game dayy,” Sweeney, 29, wrote in a sponsored Sunday, September 13, Instagram Stories post alongside nude images from her Novig photoshoot. In follow-up slides, Sweeney shared clothes-free images of pro athletes Serena Williams, Ronda Rousey, Sue Bird, Megan Rapinoe, Caroline Wozniacki, Myles Garrett, Rob Gronkowski, Karl-Anthony Towns, in addition to Jason Kelce and the Philadelphia Eagles offensive line during their respective covers for ESPN’s Body Issue. Sweeney didn’t publicly share…