The grappler, real name Steve Borden, has been in discussions with WWE about signing a deal, and the former TNA star has set his sights on a collision with 'The Deadman' at the company's biggest show of the year.
Speaking to The Mirror, he said: "I've made it clear I'd love to have one last hurrah, one last big match hopefully. And of course I've been outspoken about Undertaker being the opponent.
"I know what happened at WrestleMania where Brock Lesnar broke his streak. I think, or at least I'm hoping, that Taker's still going to come back and that he's not done. If he's not done, and he would consider doing it, I'd love to work with him one time. I'd love to wrestle him one time before I call it quits.
"Undertaker maintains a status in wrestling and the WWE that is second to none. He's a phenomenon. How about San Francisco, 2015, in April?"
Despite his legendary status in professional wrestling Sting has never worked for WWE, having forged his reputation in the defunct WCW before moving to TNA.