Their feud reignited in 2021 when Brock Lesnar returned to the WWE

Roman Reigns and Brock Lesnar have had a long-standing rivalry in the WWE. Both men are former WWE champions and have faced each other multiple times in high-profile matches, including at WrestleMania 31 and 34. Their feud reignited in 2021 when Brock Lesnar returned to the WWE after a hiatus. He challenged Roman Reigns for the Universal Championship, but Reigns was able to retain the title after interference from Paul Heyman, Reigns' former advocate who had joined forces with Lesnar. The feud continued into 2022, with Lesnar determined to take the title from Reigns. The two faced off at SummerSlam 2022, with Reigns once again emerging victorious after a grueling match. Overall, the rivalry between Roman Reigns and Brock Lesnar has been one of the most intense and compelling storylines in WWE in recent years.