Hughie Fury would wipe the floor with Anthony Joshua according to his promoter Mick Hennessy, despite the 23-year-old seeing his world title challenge come up short against Joseph Parker.
Fury had been looking to emulate his cousin Tyson - who expressed his frustration in the ring after the result - by claiming a heavyweight belt in Manchester on Saturday, but Parker won a scrappy fight on a split decision.
Parker retained his WBO title thanks to two of the judge's cards giving him the bout 118-110, a decision that enraged the Fury camp despite a reserved display.
Hennessy could not believe his fighter had lost and claimed Fury has the skills to dominate the heavyweight division by beating WBC champion Deontay Wilder and Joshua, who holds the IBF and WBA titles.
"I thought that was disgraceful," the promoter said after the fight. "I thought it was a masterclass from Fury.
"One of the things I was sat there thinking while he was wiping the floor with Joseph Parker was that he will do the same to Anthony Joshua.
"He [Joshua] can't handle movers. Hughie Fury would put a masterclass on him as well.
"For me, he would beat Deontay Wilder and Joshua on that performance. He's proved that he's a major talent and he can mix it at the highest level."
114-114 118-110 118-10 and STILL WBO heavyweight champion @joeboxerparker! Brave effort from Fury. His time will come!— Hennessy Sports (@HennessySports) September 23, 2017
Fury was shocked not to get the decision and claimed the judges had "ruined people's lives".
"I don't think Parker won the fight. The scoring was way off," he said.
"I thought I was ahead on the scorecards, I don't understand. I thought I won.
"I was disgusted to be honest. What else can I say? They've ruined people's lives tonight."
While Fury rues a defeat that could cost him a chance against Wilder or Joshua, it is Parker who is setting his sights on the other heavyweight champions.
"It's a great result," said Parker. "I want to go back to New Zealand and have a bit of a break now.
"I feel that this opens up big fights here [in the UK], we can come back and set up another big fight."
|Buttler the difference for England, says Morgan|
|Hamburg dismiss Gisdol after fourth loss in a row|
|Brilliant Buttler century sets up England series win|
|Melbourne City 5 Adelaide United 0: Budzinksi & Vidosic braces inspire emphatic win|
|Marco Silva sacked by Watford following ´significant deterioration´|
|Nadal promises greater aggression in the last eight|
|Deschamps knows my thoughts - Lucas Hernandez hints at France decision|
|Nadal battles past Schwartzman in Melbourne|
|Wozniacki: I have nothing to lose|
|Impey claims historic Tour Down Under win|
|Rockets end Warriors´ 14-game road winning streak|
|Klopp: Liverpool wouldn´t sell to rivals during season|
|Spence retains IBF welterweight title with TKO of Peterson|
|Wozniacki cruises into Australian Open quarter-finals|
|Giggs keen to help Bale overcome injury woes|
|Harrison key to containing ´monster´ Fournette|
|Klopp in no rush to replace Coutinho|
|Cook leads, Rahm in contention in California|
|Cavaliers booed after abysmal first quarter|
|Titans hire Mike Vrabel as new head coach|
|Brive deny Worcester after stadium swap|
|Malcom dreams of Premier League but remains unsure of future|
|Guardiola sets target of 10 wins to guarantee title|
|Championship Review: Millwall break Leeds hearts in seven-goal stunner as Wolves lose|
|Messi and Pique welcome Coutinho to Barcelona training for first time|
|Thauvin ´very happy´ at Marseille|
|Guardiola salutes ´outstanding´ Manchester City|
|Saracens still not safe, Scarlets battle through|
|Watford still battling relegation from the top half, insists Silva|
|Rondon ´devastated´ after Everton´s McCarthy suffers horror injury|
|Aguero´s perfect hat-trick is Argentine´s 11th for Manchester City|
|Moyes impressed with Hammers display despite being held by Bournemouth|
|Dyche annoyed with Burnley´s ´big six´ results|
|Manchester City 3 Newcastle United 1: Aguero hat-trick sees pacesetters bounce back|
|Everton fans´ frustration understandable, says Allardyce|
|Wenger responds to Dortmund criticism over Aubameyang affair|
|Bordeaux appoint Poyet as new boss|
|Serena Williams: I can´t figure out a stroller!|
|Lee reigns supreme again as Cheetahs crush Southern Kings|
|Mourinho frustrated at United failure to ´kill´ Burnley|
|Simeone reveals Costa knock as Atletico bemoan dropped points|
|Lambert upbeat over Stoke´s quality after debut victory|
|Nothing happening with Aubameyang - Wenger|
|Mourinho, Wenger expect imminent Sanchez deal|
|Everton confirm McCarthy double leg break|
|Valverde talks of ´respect´ for Atletico as Griezmann saga turns again|
|NFL playoffs: Picks, predictions for AFC & NFC Championship Games|
|Rafinha misses Barca training with Inter closing in|
|Neymar misses Lyon clash with thigh injury|
|Atletico Madrid 1 Girona 1: Griezmann substitution costs Simeone|
|´Proudest son´ Sainz congratulates father on Dakar Rally win|
|Everton 1 West Brom 1: McCarthy horror injury overshadows cagey draw|
|Leicester City 2 Watford 0: Vardy & Mahrez decisive as Puel´s men go seventh|
|West Ham 1 Bournemouth 1: Hernandez proves his worth to Hammers|
|Burnley 0 Manchester United 1: Martial keeps up winning run|
|Arsenal 4 Crystal Palace 1: Early blitz means Sanchez is hardly missed|
|Stoke City 2 Huddersfield Town 0: Lambert makes winning start as Potters inch out of bottom three|
|Crisis, what crisis? Conte lambasts Chelsea critics|
|A goal, two assists and an injury - Monreal the Sanchez replacement at Arsenal?|
|Monchi has no interest in weakening Roma squad amid Dzeko reports|
|Hazard delights in Willian and Batshuayi link-up|
|Federer reveals locker-room advice to ´crushed´ Zverev|
|Resurgent McIlroy working on not being ´one-dimensional´|
|No January exit for AC Milan´s Silva, assures Gattuso|
|Turner´s timely half-century gets Scorchers home|
|Spalletti: Roma game will not decide Inter´s fate|
|Brighton and Hove Albion 0 Chelsea 4: Hazard dazzles as Conte´s men get back on track|
|Fisher pulls level with Pieters as McIlroy, Fleetwood lurk in Abu Dhabi|
|Dortmund confirm Arsenal bid for Aubameyang|
|United target Sanchez remains absent for Arsenal vs Palace|