Informed sources close to the situation reported about the organization of the bantamweight bout.
Zach Pauga, 35, had three fights in the UFC, losing by knockout to Mohamed Usman, winning by unanimous decision over Jordan Wright, and losing by unanimous decision to Modestas Bukauskas.
Bogdan Guskov, 31, lost a first-round rear-naked choke to former UFC bantamweight title challenger Volkan Ozdemir in his previous bout, snapping his own four-fight win streak with a knockout.
As a reminder, the main event of UFC Fight Night 236 will be a middleweight bout between Jack Hermansson and Joseph Peifer.