In the main event of Sunday's WWE Extreme Rules PPV, the WWE Champion Roman Reigns was able to beat the number one contender AJ Styles. Even though it was a good match, that was not the highlight of it. The best part was right after Reigns won, former champion Seth Rollins made his return from injury and took out Reigns. As you can see in the video captured by Katie Linendoll, the crowd loved to see the returning Rollins. A Rollins-Reigns feud is just what the WWE needs right now.