#1 The Undertaker vs Sting

This is one match that would blow the roof off the Scotiabank Arena in Toronto. The Undertaker and Sting are two of the biggest names in pro wrestling, but it's a pity that they have never faced each other.
Sting has spoken about how he would return to the WWE for just one match - against The Undertaker. There have been several signs that The Undertaker and Sting would face off in WWE, the most recent being at Extreme Rules, where Undertaker's entrance video had the sound and visual of a crow - which is associated with Sting.
Also Read: 5 Major signs that Sting may return to face The Undertaker later this year
WWE need to up their ratings and what better way than adding one of the most eagerly awaited dream matches as the finale to the SummerSlam PPV.