From the moment that Seth Rollins teased cashing in his Money in the Bank last fall, WWE has teased the two Superstars finally battling in a one-on-one contest. The 2015 Royal Rumble event saw Rollins do unprecedented damage to Lesnar nearly defeating him in a Triple Threat match also involving John Cena. Lesnar would retain his title, barely, pinning Rollins after an F5. It was the greatest test of his title reign to date, a fact that put the former Architect of The Shield over on a whole new level. Rollins would gain a measure of revenge when he cashed in and took Lesnar's title without ever pinning him. It was the ultimate coward's move, one that firmly established the former Ring of Honor standout as the most opportunistic, yet most hated, Superstar on the WWE roster. That cowardice was enhanced tenfold 24 hours later on Raw, when he refused to grant the Beast Incarnate his contractual rematch. With Lesnar's appearances limited over the next year, WWE should use him to set up a heated grudge match between the two at next year's Showcase of the Immortals. It would be a contest with a year's worth of build that maximizes Lesnar's worth while also putting a young star such as Rollins in a marquee position on the card. And best of all, the story is so strong that it does not need the WWE World Heavyweight Championship to be a hotly anticipated contest.