#1. John Cena

On a recent interview with TMZ Sports, the legendary WWE wrestler John Cena said that he has been giving serious thoughts about hanging up his boots. However, most of the WWE fans want him to break Ric Flair's official record of sixteen world title reigns. Cena is also at sixteen world title reigns and one more title reign would help Cena breach the record.
Seth Rollins and John Cena had a great SummerSlam match at SummerSlam 2015. The then WWE Champion Rollins and the then United States Champion Cena clashed in a "Winner-takes-all" match. Cena came up short in that match due to an unlikely interference from the guest host Jon Stewart.
Even if Cena were to lose this match, it would give a solid rub to Rollins' Universal title run, since the fans are tired of his rivalry against Baron Corbin. It is a win-win situation for WWE if Rollins were to go against Cena at SummerSlam 2019.
Becky Lynch has been challenged HERE.