#4 Because Braun Strowman is turning heel, and finally winning the Universal title
At Clash of Champions, Braun Strowman will compete for the Universal title, but this isn't the first time the Monster Among Men has competed for the red title.
In 2017 and 2018, Strowman received multiple shots against the Beast Brock Lesnar, but always came up short against the then-Universal Champion. These title match fails have seriously hurt Strowman's credibility, and at this point, fans have to wonder whether his mystique could take another huge loss.
A WWE Hall of Famer isn't a John Cena fan. More details HERE
Having Rollins wrestle twice on the same night could allow the Monster Among Men to show his heel side, abandoning his partner in the Raw Tag Team Title match. A downed Architect would then be easy pickings for Strowman, who could finally capture his first Universal Championship reign.
Rollins knows all about turning on your tag team partner (look at the end of the Shield in 2014), and also knows what it's like to be turned on (Dean Ambrose's attack on him on RAW in October last year), and could face a repeat of the latter next month.