Anthony Joshua, left, and Wladimir Klitschko were in New York City on Tuesday to promote their April 29 heavyweight title fight in London/Photo by Ed Mulholland

Heavyweight champion Anthony Joshua of England has an objective – to be the best ever.

“That’s my obsession,” he said Tuesday in New York City, where he and former champion Wladimir Klitschko hosted a news conference promoting their April 29 fight at Wembley Stadium in London, where a sellout crowd of 90,000 is expected.

“I’m a man who likes to perform and entertain and that’s always been there. I’ve always wanted to take on the best,” Joshua said.

Since Klitschko will be 41 by the time this fight happens – his birthday is March 25 – Klitschko may not be “the best” at this point. That’s not to mention he’s coming off a loss to Tyson Fury that took place in November 2015. That’s another thing. Klitschko will have some 17 months out of the ring by fight night.

“I believe this man has a lot of skills,” Klitschko said of Joshua. “Maybe yes, maybe not he will be the biggest star in boxing. I know there are plans to fight (Deontay) Wilder after me.

“It’s good to be young and ambitious, but I believe this fight has a lot of questions. Is it too early for him, too late for me?”

Joshua, 27, is 18-0 with 18 knockouts. Klitschko, of Ukraine, is 64-4 with 53 knockouts.