Per BBC Sport, Joshua will defend the IBF, WBA, WBO and IBO heavyweight titles against Pulev.
Joshua announced earlier this week on Facebook (h/t BBC.com) he had agreed to defend his titles against Pulev: "There is no way back, no postponement, no rescheduling!
Joshua and Pulev were scheduled to meet June 20 at Tottenham Hotspur Arena in London, but the match had to be postponed due to the coronavirus pandemic.
This will be the first title defense for Joshua (23-1, 21 knockouts), who avenged the only loss of his career with a victory over Andy Ruiz Jr. last December to capture the IBF, WBA, WBO and IBO championships.
Pulev (28-1, 14 knockouts) is going for his ninth consecutive win and an opportunity to become the undisputed heavyweight champion.