Nemanja Matic feels Manchester United are "definitely" a bigger club than his former side Chelsea.
The midfielder spent three-and-a-half years in his second spell at Chelsea, winning the Premier League twice in that time before moving to United ahead of this season in a reported £40million move.
Matic was named man-of-the match in his Premier League debut as Jose Mourinho's men impressively beat West Ham 4-0 last weekend.
He is loving life at United and risked the ire of his former club's fans by claiming he was in no doubt his new side were bigger.
Asked if United were the biggest club he has played for, Matic told Sky Sports: "Definitely, everyone knows what Manchester United is about.
"When you say Manchester United, it is different.
"Also Chelsea is a big club, Benfica are the biggest club in Portugal. But Manchester is Manchester.
"When I came here for the first day, I could feel that the people at the club help you every day if you need something and supporters are very important for this club.
"After every training session, they are waiting for us outside the training ground to take pictures, to give a signature so I think the club is one of the biggest in the world.
"Maybe you have two or three clubs similar to United, but Manchester is one of the biggest clubs in the world for sure."
Matic revealed it was an easy decision to join a club of United's stature, particularly given it was his former boss who Mourinho came calling.
"He was very important for me," Matic said of Mourinho.
"He bought me to Chelsea from Benfica and now when I decided to come to Manchester, he was a reason to come here.
"Mourinho was the reason and so was the club, Manchester United, so you don't need to think a lot about if you are going to come.
"My decision was very quick and very clear."
|Maradona warns Kane that goalkeepers are watching|
|Manchester United great Giggs keen on Everton, Leicester jobs|
|Spalletti: Inter are Serie A contenders when Scudetto questions stop|
|Was Ronaldo really the best player in 2016-17? - The verdict in Opta stats|
|Real Madrid dominate FIFA FIFPro World XI of 2017|
|Ronaldo wins Best FIFA Men´s Player award ahead of Messi, Neymar|
|Zidane scoops Best FIFA Men´s Coach award after stellar year with Madrid|
|Giroud wondergoal wins FIFA Puskas Award|
|A lot of noise - Valverde reflects on Barca´s post-Neymar woes|
|Bernardo Silva cleared of diving against Burnley|
|Ronaldo the best? That´s Zidane´s opinion, says Valverde|
|Bonucci banned for Milan v Juventus|
|De Sciglio returns to Juventus training|
|Top of the Flops: Koeman´s transfer dealings brought about his Everton demise|
|Ditched Dutch: Koeman joins likes of De Boer & Van Gaal on the Premier League scrapheap|
|The third-shortest tenure but the second-best winning percentage - Koeman´s Everton spell in Opta nu|
|Mata urges United unity after Huddersfield embarrassment|
|Everton sack Koeman after woeful start to season|
|´Annoyed´ Theo Hernandez ready to turn back on France|
|We will fight for Conte – Courtois eager to avoid repeat of Mourinho debacle|
|Bayern Munich´s Muller out for three weeks with hamstring strain|
|It´s like hitting a chef with a knife and fork – Neymar blasts Marseille fans for missiles|
|We all deserved substituting after 30 minutes – Henderson slams Liverpool display|
|Mbappe named Golden Boy ahead of Dembele, Rashford|
|Neymar: Red card was harsh|
|Verratti: If I was Neymar, I would´ve lost it much earlier|
|Benzema isn´t overrated, insists Madrid boss Zidane|
|Cassano: I could´ve been playing on Mars like Messi and Neymar|
|Neymar red card unfair – Emery|
|Kane can become like Ronaldo and Messi, says Kobe Bryant|
|MLS Review: Portland top west, Earthquakes reach play-offs|
|Kane pleased with Spurs´ spectacle for NBA legend Kobe Bryant|
|Zidane backs ´player of a generation´ Ronaldo to rediscover goalscoring touch|
|Cavani calls on PSG to keep improving after Classique draw|
|Conte agrees with Guardiola and Mourinho over EFL Cup|
|Pochettino lauds Spurs for delivering in front of Maradona|
|Marcelo lauds Benzema as Europe´s best striker|
|Even the Golden State Warriors lose - Guardiola dismisses City ´Invincibles´ tag|
|I am different to other managers – Why Conte does not fear Chelsea axe|
|Character is key for Cahill as Chelsea chase consistency|
|Marseille 2 Paris Saint-Germain 2: Cavani rescues visitors after Neymar sees red|
|Real Madrid 3 Eibar 0: Super Asensio spares Ronaldo´s blushes|
|Allegri thanks Mandzukic for red card in Udinese rout|
|CAF Champions League Review: Al Ahly advance to final in dazzling style|
|Liverpool deserve to be ninth, says under-pressure Klopp|
|Wrong news - Wenger rubbishes Ozil exit rumours|
|Klopp slams Lovren: I would have stopped Kane getting the ball!|
|Udinese 2 Juventus 6: Khedira hat-trick inspires Bianconeri rout|
|We could have scored more - Two-goal Kane hails ´unbelievable´ Tottenham|
|Tottenham´s Kane one of the best - Pochettino|
|Atletico needed win at Celta, says Simeone|
|Tottenham set Premier League attendance record|
|Tottenham 4 Liverpool 1: Kane double increases pressure on Klopp|
|Montella questions VAR, promises ´united´ Milan will deliver|
|Celta Vigo 0 Atletico Madrid 1: Fit-again Gameiro ends visitors´ winless run|
|Wenger: Ozil back to his best for dominant Arsenal|
|Dolberg double sinks Feyenoord in De Klassieker|
|We´ve let him down – Keane backs Koeman after Arsenal capitulation|
|It´s not time to be crazy - Koeman calls for calm after Everton thumping|
|Mertesacker lauds compatriot Ozil after Everton thumping|
|AC Milan 0 Genoa 0: Bonucci sees red as 10-man Rossoneri fight for point|
|Guangzhou Evergrande claim seventh straight Chinese Super League crown|
|Everton 2 Arsenal 5: Koeman on the brink as hosts capitulate|
|Ipswich Town 0 Norwich City 1: Maddison gives Canaries more derby glory|
|Gary Neville thinks he is done as a football manager|
|Ibrahimovic has ´minimum´ five or six years left, claims Raiola|
|A-League Review: Vargas injury mars Newcastle Jets win, late winner gives Perth Glory first victory|
|Maybe the Premier League title race is already over - Klopp|
|Pochettino accuses Walker of ´alarming lack of respect´ over Tottenham exit|
|Pochettino: Mourinho put Dier in compromising position amid United interest|
|Sarri: Napoli care more about Serie A than Champions League|
|My goal was legal against Malaga, insists Barca´s Deulofeu|
|Valverde does ´not see any problem´ with Suarez´s sour substitution reaction|
|Ignore the noise, says under-fire Ozil|