Despite his laidback demeanour out of the ring, Anthony Joshua appears in a hurry when it comes to his boxing career.
The British heavyweight has conquered all foes so far since making the switch from the amateurs, becoming the IBF, WBA and WBO heavyweight champion in 21 fights.
Next up: Alexander Povetkin.
On Saturday, Joshua will once again put his titles on the line as the headline act in a stadium fight.
Returning to Wembley, the scene of surely his greatest triumph to date, the 28-year-old faces a Russian foe who will attempt to derail any potential plans for a blockbuster unification clash with WBC holder Deontay Wilder at the same venue next April.
Here we look back at Joshua's previous outings as a world champion, recalling the five defences that have helped enhance his reputation in the division.
Joshua did not waste much time in booking a first defence of his IBF strap. Having beaten previous holder Charles Martin with ease early in April 2016, he was back in the ring at the end of June to face another American.
Breazeale arrived with an unbeaten 17-fight record and was taller than the champion. He had fought at the 2012 Olympics as well, only his bid for gold ended in the preliminary round.
The Californian is nicknamed 'Trouble' but he failed to provide many issues for his opponent on the night. Joshua tenderised him for several rounds before a knockout arrived in the seventh. The beaten fighter earned plaudits for his bravery but was simply outclassed at the O2 Arena.
Poor Molina was served up as the appetiser before the main event in December 2016. The Texan had pushed Wilder into the ninth round 18 months earlier, but was blown away inside three in Manchester.
Joshua scored a knockdown with a big right hand and while Molina beat the count, referee Steve Gray called a halt to proceedings soon after the resumption. Wladimir Klitschko watched on from close quarters before climbing into the ring to confirm he would face the reigning IBF champion next.
Molina, meanwhile, tested positive for a banned substance after the bout. He was handed a two-year ban in May 2018, though by then he had already had two outings since losing to Joshua.
Wladimir Klitschko— Omnisport (@OmnisportNews) September 19, 2018
The big-name trio all struck gold as amateurs at the Olympics - but who else has reigned at super-heavyweight since the 1996 Games?
Read our full rundown (via @sportingnews): https://t.co/CQvsT6HM29 pic.twitter.com/x1VufYltlI
Klitschko was undoubtedly the biggest test of Joshua's career. The cynics suggested the Londoner had benefited from a soft schedule in the pros, but a meeting with the experienced Ukrainian in April 2017 looked anything but easy.
As well as the IBF strap, the vacant IBO and WBA titles were on the line in front of a full house at Wembley Stadium. The meeting of two fighters at contrasting stages of their careers did not disappoint either, serving up a see-saw contest that captivated the audience.
Joshua scored a knockdown in round five but was down himself in the next. However, Klitschko failed to capitalise on a rival apparently running on empty, allowing the home favourite to regroup and force a stunning stoppage in the 11th, with Klitschko downed again before being saved by referee David Fields.
Joshua was due to take on Kubrat Pulev in October 2017 in Cardiff, only for the IBF mandatory challenger to pull out through injury. In stepped Takam, a teak-tough replacement with a reputation for making life difficult for his foes.
He certainly left a mark on the Briton, an early clash of heads drawing blood from Joshua's nose, while Takam suffered a nasty cut in a fourth round that also saw him knocked down.
However, the substitute stuck around until he was eventually stopped midway through the 10th. Takam felt he could have carried on, but Joshua extended his record of wins inside the distance to 20 after a less-than-memorable outing.
The unification clash between two unbeaten heavyweights in their prime saw Joshua head back to the Welsh capital at the end of March this year. In the opposite corner was Parker, a New Zealander based in Las Vegas who held the WBO title.
For the first time, Joshua was unable to get the job done inside the distance. His risk-free policy of staying out of range allowed him to put rounds in the bank, leading to a landslide verdict from the judges after a slow-burner that was more intriguing than entertaining.
Parker – returning after surgery on both elbows – was a tough nut to crack but barely threatened an upset. He achieved the honour of becoming the first boxer to take AJ 12 rounds, but left the ring minus his belt. For Joshua, it was a performance that demonstrated he is about far more than just raw power.
|Muller apologises to Tagliafico for kick to the head|
|Pereira pleads for more Manchester United chances|
|Griffin hails ´phenomenal´ Lowry after Warriors demolition|
|I´ve played with Zidane and Henry, but Messi is something else – Pires|
|Dragons forward Jack de Belin charged with sexual assault|
|Durant: Raptors are the real deal|
|Cocu bids farewell to Fenerbahce after ´mutual agreement´ is made over October sacking|
|Australia unchanged for historic Perth Test|
|Champions League draw: The possible last-16 ties|
|Southee happy to be back on home soil|
|I wouldn´t swap Dembele for Neymar – Pires|
|Canelo ready to risk heavy weather against Fielding|
|Raptors upstage Warriors, Davis leads Pelicans with 44 points|
|India skipper Kohli excited by green Perth wicket|
|PSG? I haven´t decided my future yet – De Jong|
|Marcelo: Real Madrid don´t have attitude problem|
|India pair Ashwin, Rohit ruled out of second Test|
|Kovac: Ajax-Bayern draw was amazing|
|Sims re-signs with Dragons until 2022|
|Derrius Guice injury update: Redskins RB (knee) has rehab setback, undergoes 3 more procedures|
|Emery: Arsenal could sign defender in January|
|Phillies sign McCutchen to three-year deal|
|O´Neal thinks his Lakers teams could ´easily´ beat Warriors|
|A-League to add two clubs by 2020|
|Curry says he was ´obviously joking´ about moon landing comments|
|Now the beautiful part starts – Ronaldo ready for Champions League knockout stage|
|Bayern have a lot more potential – Lewandowski not satisfied despite top spot|
|Lyon star Fekir shares plaudits for Champions League progression|
|Mourinho not surprised by United´s defeat to Valencia|
|Motivation no issue for Benfica, claims Vitoria|
|Lewandowski finishes Champions League group stage as top scorer|
|Mourinho: We scored two goals and lost 2-1!|
|England have a diamond - Guardiola hails City´s Foden|
|Sterling´s carefree display invites us to love football more than others hate|
|Juventus achieved their objective, despite everything going wrong – Allegri|
|Never say never - Schmidt not ruling out All Blacks role|
|Bologna´s winning start ended in BCL|
|Di Francesco critical of Roma performance|
|Shakhtar Donetsk 1 Lyon 1: Fekir fires French side through in Group F|
|Benfica 1 AEK Athens 0: Grimaldo sends hosts out on a high|
|Young Boys 2 Juventus 1: Hoarau double seals famous victory|
|Manchester City 2 Hoffenheim 1: City through as group winners after Sane brace|
|Ajax 3 Bayern Munich 3: Kovac´s men clinch top spot in Amsterdam thriller|
|Valencia 2 Manchester United 1: Jones scores own goal as Red Devils limp through|
|Solari accepts responsibility for Madrid´s heaviest home defeat in Europe|
|WATCH: Rooney backs Rocky ahead of Canelo showdown|
|McLaren to collaborate with Team Bahrain Merida|
|Las Vegas to host 2020 NFL Draft|
|Stade teenager tragically dies after neck injury|
|Cahill may need to leave Chelsea if he wants to play, admits Sarri|
|Viktoria Plzen 2 Roma 1: Chory winner takes hosts into Europa League|
|Real Madrid 0 CSKA Moscow 3: Champions humiliated at Bernabeu|
|Sarri condemns ´disgusting´ Sterling abuse|
|Hansen hails outstanding Ben Smith ahead of Pau switch|
|Foden, Sterling start for Manchester City v Hoffenheim|
|Sky decision will not affect us in 2019, insist Froome and Thomas|
|Al Ain 3 Team Wellington 3 (aet, 4-3 on penalties): Shootout heartbreak for semi-pros in Club World|
|Jackson to remain Ravens´ starting QB despite Flacco return|
|Rams headline 2019 NFL International Series home teams|
|Rams headline International Series home teams for 2019|
|Atlanta want ´exciting football´ from new boss amid Bielsa links|
|Atlanta still yet to receive ´serious´ bid for ´Bale-like´ Almiron|
|Tottenham v Manchester United to be held at Wembley|
|Matip facing six weeks out with fractured collarbone|
|I´ve had quite a lot of calls – Brailsford encouraged by Team Sky interest|
|Afghanistan Football Federation president provisionally banned by FIFA|
|Knee injury rules Huddersfield´s Mooy out of Asian Cup|
|Arnautovic tipped for Man United move by Austria team-mate Sabitzer|
|Arsenal legend Adams to become RFL president|
|My love for football still burns strong – Toure speaks out amid talk of Premier League return|