The Rock vs. Triple H.
Two legends, one ring, on the grandest stage of them all.
These two are known for the rivalry that they had in 1999 and 2000. When Stone Cold Steve Austin was sidelined with an injury, it was The Rock and Triple H who stepped up and took the company forward with intense and emotionally charged programs and matches.
Despite this track record, these two have never gone one on one at WrestleMania.
The WWE Championship was on the line at WrestleMania 16 in 2000, however, it was a fatal-four-way elimination match that also involved Mick Foley and the Big Show.
A rivalry, even 13 years down the road, needs a definitive conclusion, and a singles match at WrestleMania would serve as such.
The Rock, having a grudge that the two never faced off at 'Mania one on one, would be looking to gain the definitive final say in the heated rivalry.
Triple H, even with the success that he's had, still has a gripe with The Rock and him having the edge over him 13 years ago.
Imagine two legends colliding at the Showcase of the Immortals to close the book on one of the greatest rivalries and best eras in professional wrestling.