The Club interference
Before their showdown at Money in the Bank, John Cena and AJ Styles had signed a contract that kept Karl Anderson and Luke Gallows away from the match. However, thanks to a referee bump, Anderson and Gallows managed to interfere and due to the same, AJ came out winning the match which could have gone either way.
From how the match ended, Cena deserves a rematch but at the same time, it would be interesting to see how AJ reacts to The Club. WWE did post a photo on Instagram which showed all three of them celebrating, but that does not mean AJ could be happy with what his friends did.
But, if Styles is happy then John Cena might need some backup to take care of The Club. A returning star like Randy Orton would be a perfect backup for Cena.