Povetkin's defeat by Klitschko came on the same night Joshua made his professional debut by stopping the little-known Emanuele Leo at the 02 Arena, when even for all of the excitement surrounding Joshua, it was Klitschko-Povetkin that demanded the greatest attention.
Standing at 6-foot-6 with an 82-inch reach, the 28-year-old Joshua has a noticeable size advantage over the 6-foot-2 Povetkin.
Both men had won Olympic gold medals, but it was the youthful energy of the 28-year-old Joshua which proved decisive as Povetkin visibly exhausted halfway through the contest.
A mega fight between Tyson Fury and Deontay Wilder was just announced for December 1st on Showtime, and the victor of the Joshua and Povetkin fight will likely, and hopefully, face the victor of tonight's bout in the near future.
A fierce 7th round Anthony Joshua TKO ended the challenge of Alexander Povetkin in tonight's heavyweight bout in Wembley Stadium.
With an impressive professional record that consisted of only a solitary defeat to Klitschko in 2013, the 39-year-old Povetkin certainly looked to be challenging the younger, bigger Joshua for the opening half of the fight. Obviously I've not been out there knocking people out (in the early rounds) like I used to, but it's different, top-tier fighters at the top end.
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He said: "I'm up against one of the best fighters in the world". The energy in here spurs you on but I do feel the pressure, I'm not going to lie.
"It's a very comfortable and good weight for me, I feel great", he said, via a translator.
'Let's see whats happening on April 13.
"Joshua is not an Instagram world champion, he is a real world champion".
What Canelo is at the box offices in America, so is IBF/WBA/WBO unified belt holder Joshua (21-0, 20 KOs) on the east side of the pond. He started well, too, exploding out of the blocks to land a few good shots, and produce blood from Joshua's nose.