On Saturday night, Anthony Joshua called out Deontay Wilder and pledged to knock the American puncher "spark out" after adding another heavyweight world title belt to his collection with a unanimous points victory over Joseph Parker in Cardiff.

Joshua improved his record to 21-0 by beating the previously undefeated Parker in a cagey contest that never really came to life.

Having come through 12 rounds for the first time in his career, all of his earlier wins having been by knockout, Joshua now holds the WBA, IBF, IBO and WBO belts, with Wilder very much in his sights.

Wilder has repeatedly spoken of his desire to face Joshua and, in a post-fight interview with Sky Sports, the Briton was asked if he had a message for his rival.

Interestingly, when he was asked who he would like to face next, Joshua replied: "Wilder ... or [Tyson] Fury. Either one."

Fury has not fought since beating Wladimir Klitschko to become a shock heavyweight world champion in November 2015, but the 29-year-old is working his way back to fitness following a lengthy period away from the ring.

Joshua insists any fight with Wilder would not need to happen in America.

Joshua's promoter, Eddie Hearn, is willing to make a deal for a fight with Wilder for the fall - but first he'd like to do a summer event with Joshua, likely in the United States against a top challenger.

“Can we get away with one more fight before Wilder? Yes, probably,” Hearn told Express Sport.

“In America would be the best move, and then we do the Wilder fight. Jarrell Miller, Bryant Jennings - I don’t know. But WBA will probably call the mandatory in the summer so then he’ll have to fight Alexander Povetkin in October and November but if the Wilder fight happens that will get passed.

“But what we have to consider is there is a very limited timeframe to make an undisputed fight because you’re going to get mandatories and when you complete one the other governing body is going to put a mandatory on you. And that’s why I think the Wilder fight should happen in 2018.

“It probably shouldn’t happen this year in terms of building it up and the time to make it. But it has to because of the demand of the fans and the world we live in now.

“The good news for fans is I do listen and I do read what they want. After a while, you can’t not give them it. I’m not saying as soon as they want it, you’ve got to give it to them, but there comes a time when you have to.”