Arman Tsarukyan will challenge lightweight champ Ilia Topuria for the title, likely in December.

Arman Tsarukyan is set to challenge lightweight champion Ilia Topuria for the title, according to UFC insider Chael Sonnen. Tsarukyan earned the shot after successfully making weight for a backup role earlier this year. Despite Topuria's preference to vacate the title, the fight is expected to be announced soon, with a potential date set for December at T-Mobile Arena.