WWE recently announced via their official Twitter page that on this coming Tuesday night's edition of SmackDown LIVE, WWE Champion AJ Styles will go one-on-one with Sami Zayn in a non-title match:

JUST ANNOUNCED: #WWEChampion @AJStylesOrg and @SamiZayn will square off in a non-title match THIS TUESDAY on the first #SDLive of 2018! https://t.co/xoocyxowhL

— WWE (@WWE) December 30, 2017