As is often the case in fight week with world titles on the line, all is not quite as it seems.
Challenger Alexander Povetkin is a 39-year-old adrenaline junkie who would celebrate an upset win by treating himself to a parachute jump.
Meanwhile, the unified champion – a man 11 years his junior – has been mulling stage-of-life issues.
"I've got to the stage where [I think] what do I live for?" IBF, WBA and WBO king Anthony Joshua told reporters. "What am I doing? Who am I impressing? I'm in the gym. You get to a mid-life crisis and you just don't care no more. It's one of those things.
"And then you know what it's like when you're younger; I want to be heavyweight champion of the world. You become it and you think it is going to change your whole life, but I've realised it doesn't.
"I'm just still sitting here, small room, content with my flat and I just hit a wall where I was like: 'you know what, I just don't care anymore'.
"This is my life, I have got to stick with it and that's probably why I haven't bothered to cut my hair because I have got nothing to cut it for."
Coiffure issues aside, Joshua looks in typically imposing physical shape as he prepares to take on a a fellow former Olympic champion who has lost just once in 35 fights.
Povetkin's loss was to Wladimir Klitschko, who famously came close to dethroning Joshua in a Wembley epic 17 months ago. It was the night the Briton became a superstar, climbing from the canvas and riding out a mid-fight crisis to separate the great Ukrainian from his senses with a thunderous 11th-round uppercut.
Stadium extravaganzas are Joshua's new normal. He returns to England's national stadium having bested Carlos Takam and Joseph Parker in front of 80,000 fans in Cardiff.
We saw a new side to the knockout machine last time out as he added Parker's WBO strap to his collection. Joshua controlled the range with improved footwork that nullified the New Zealander's speed, seeing out the championship distance for the first time.
By the time a unanimous decision win was announced in the Welsh capital, public demand was already pulling in another direction. Now it was time for motormouth WBC king Deontay Wilder. All of the belts.
Negotiations between Joshua and Wilder's camps proved fractious, increasingly embittered and frustrating. Step forward a certain Tyson Fury.
The undefeated former champion and Wilder are poised to announce a date and venue for their end-of-year showdown and have been able to trade from the position of giving the public what they want, while Joshua deals with a smaller, aging foe who has served a doping ban.
Fury's two comeback bouts have proved pitiful spectacles and, with nothing to lose, he was always going to prove an easier negotiation for Wilder. But in tandem they have won the PR battle and will loom over Joshua's weekend work.
The Gypsyking is coming to invade America
|NASA invites Curry to see moon rocks|
|No plan B for LaLiga Miami game after Barcelona withdrawal|
|Messi´s English haul, Neymar eyes hat-trick record - Champions League in Opta numbers|
|LeBron trumps Wade in last dance, Curry scores 38 points|
|Seahawks secure dominant win over Vikings|
|Iniesta visits Messi and former club Barcelona|
|Drake makes plea for ball thrown into stands after Miami miracle|
|´Toughest pretty boy I´ve ever met´ - Langer dismisses Paine concerns|
|Van Dijk says Liverpool can challenge for double ahead of Napoli decider|
|Hazard: I´ve always loved Real Madrid|
|Yankees interested in Machado, not Harper - Cashman|
|Warriors´ Curry believes moon landing was faked|
|76ers star Butler suffers strained groin|
|Brady: Patriots still have a lot of football to play|
|´No one died´ - Belichick´s message to Patriots after stunning loss|
|Silva lauds Digne after stunning free-kick|
|Aduriz joins Messi, Ramos in LaLiga history books|
|We have a plan - Ravens coach Harbaugh prepared for Flacco return|
|´It´s difficult to accept´ - Gracia calls for introduction of VAR|
|LaLiga press on with overseas match plan despite Barcelona withdrawal|
|PSG open Coupe de France defence at fifth-tier Pontivy|
|Hazard backs Sterling as Neville reveals England star´s Euro 2016 concerns|
|Everton 2 Watford 2: Digne salvages draw with 96th-minute free-kick|
|Barcelona could ´steal´ Kane, says Pochettino|
|Oakland Raiders fire general manager McKenzie|
|Struggling Villarreal appoint Garcia Plaza as Calleja successor|
|Warriors assign Cousins to G League team|
|Barcelona pull out of plan to play LaLiga game in Miami|
|Pochettino to keep an eye on Inter when Spurs face Barcelona|
|Pochettino confirms Walker-Peters set to start against Barcelona|
|Denver Nuggets add free agent Young|
|Topping Group A no magic wand for an easy knockout draw, says Simeone|
|The cake has been made, now we need the cherry - Ancelotti targets repeat at Anfield|
|Lloris braced to face ´one of the best in history´ in Messi|
|Tuchel expects Neymar to face Red Star|
|Foden signs Manchester City deal to 2024|
|It happened to me! - Valverde laughs off Dembele timekeeping|
|´Projecting´ an Argentina return? Messi met with AFA president and Scaloni|
|Erasmus expects to leave head coach role after World Cup|
|Chelsea issue suspensions pending investigation into Sterling incident|
|Kane is extraordinary – Valverde hails reported Barcelona target|
|Man behind Naomi Osaka´s rise wins WTA Coach of the Year|
|England name unchanged Test squad as Willey returns for West Indies ODIs|
|Spalletti: No issue with Icardi watching Superclasico in Madrid|
|Klopp confirms 2013 talks with ´chatty´ Napoli president De Laurentiis|
|Sri Lanka spinner Dananjaya suspended due to illegal action|
|His reaction was just brilliant – Klopp praises Sterling for response to abuse|
|Gomez renewal a ´smart decision´ for both parties – Klopp|
|Magnificent Molinari named European Golfer of the Year|
|Barcelona best option for Frenkie de Jong, insists midfielder´s father|
|Gronkowski on Miami Miracle: ´Got to make that tackle´|
|Tottenham youngster Walker-Peters signs on until 2023|
|Juventus ´more of a family´ than Real Madrid - Ronaldo|
|Kingsley Coman contemplates retirement if injury nightmare continues|
|McVay ´sick´ over offensive failings as Rams coach takes blame for loss|
|Calleja axed as Villarreal coach|
|Kenyan Drake on Miami Miracle: I couldn´t let Gronk tackle me!|
|Ronaldo: I deserved Ballon d´Or, the numbers don´t lie|
|Rugby Australia to make Cheika decision this month|
|England defender Gomez signs new Liverpool deal|
|Ronaldo wants to see Messi follow him to Italy|
|Neymar happy to play in any position for PSG - Draxler|
|Paine insists he is ´fine´ after taking blow to finger|
|Ponzio: River players will be ´idolised´ for Libertadores success|
|Champions League permutations: How Inter, PSG and Liverpool can progress|
|Kohli: India were better and deserved to win|
|Bears shut down Goff, Rams|
|India survive dramatic finish against Australia|
|Klopp calls for electric Anfield atmosphere against Napoli|
|Saints clinch back-to-back NFC South titles, Bears trump Rams|