Last month, she insisted that she's 'not going to pick a team just yet'.
But Kim Kardashian has suggested that she has a preference for one Premier League football club, by wearing the team's merch in her latest Instagram post.
The reality television sensation, 43, took to her grid on Monday to share several photos with her children, nieces, nephews, and Scott Disick, 40.
Kim held her youngest daughter Chicago, five, and wrapped an arm around Saint, eight, while North, 10, and Psalm, four, flashed the peace sign.
Mason, 13, stood beside his little sister Penelope, 11, and father Scott, who slung an arm over his shoulders.
However, what caught fans' attention was Kim sporting a red Manchester United baseball cap.
The beauty mogul has recently been spotted attending several football matches and posing with the sport's biggest stars.
While Kim used to play football at school, her interest in the sport has been intensified by her eight-year-old son Saint's love for the game.
Keen to feed Saint's passion for football, Kim took her son and some of his friends to watch an Arsenal match at Emirates Stadium in March.
The group was spotted the same month at Parc des Prince to see Paris Saint-Germain play, as Kim continued her 'soccer tour.'
The trip was documented in a recent episode of The Kardashians, with Kim explaining that Saint has a 'newfound obsession/love with soccer, so I decide I wanna plan this like legendary trip of a lifetime.'
She said: 'I am taking Saint and his best friends and their moms on a trip to London and Paris. It's called our Soccer Mom Tour Trip.
'Our boys love soccer and they're obsessed with all the players from Mbappe, Messi, Ronaldo, Neymar, Saka. You name it, they're obsessed.
'I try to find what my kids' passion is, and do a trip with them. I've taken Chicago and her friends to San Diego. They love the zoos and the Legolands and all that.
'Luckily, Psalm just tags along, you know. North loves Paris and fashion, so I took her to Paris. Saint loves soccer, so I figured this is our trip. It's gonna be so much fun and it definitely is just such an amazing bonding experience.'
On the way to the stadium she confessed: 'This is like a dream come true. I played soccer, so I want to make sure Saint has so much fun and falls in love with the sport.'
Addressing one of the mums, she added: 'I just love that we can give this to our boys. They're gonna remember this forever.'
'I like soccer, but I never had this like passion before, and the fact that all the boys love it so much, just makes it so much fun.'
In July, Kim also took Saint to see Lionel Messi's debut for Inter Miami alongside David and Victoria Beckham.
Speaking to Apple TV pregame, Kim said her son was the driving force for her attendance.
She said: 'All summer we're going to different exhibition games. I played soccer for five or six years. I was goalie - and center-forward - I wasn't bad, you know!
'I loved it, so I'm happy that my boy loves it - and that we can come. They're excited and that just makes me so excited. I'm happy to be here with Victoria, David and everyone. It's going to be such a fun game.'
When asked if Saint has a favorite player, she replied that it was the legendary Messi and that he was 'so excited', with the football eventually getting a selfie with the star.
Kim has also previously revealed that superstar Cristiano Ronaldo is one of Saint's idols, and he also appears to be a big fan of France icon Kylian Mbappe.
However, while at the Arsenal game in March, Saint confessed his favourite player is actually England's Bukayo Saka.
Kim earned some serious mum points as she then managed to get her son on a FaceTime call with the Arsenal forward.
In July, she snapped photos partying alongside Mbappe, before taking Saint to meet Neymar and Ronaldo after the PSG vs Al-Nassr match at the Nagai Stadium.
Saint had both of his jerseys signed by both legendary players and Kim shared two heartwarming videos of Neymar teaching her son a special dance and of Ronaldo recreating his iconic 'siuuu' celebration with Saint.
Kim was even given the rare opportunity to meet PSG president Nasser Al-Khelaifi who handed over a match shirt inscribed with 'Kim 1'.
She also admitted that she 'freaked the f*** out' when she met Manchester City striker Erling Haaland at a Dolce and Gabbana fashion event in Italy.
She said: 'I was in Italy and I see Erling Haaland, and I freaked the f*** out because I know my son would be so excited, it's like his thing.
'So, I'm like such a loser FaceTiming at this event being like, "Saint, you'll never guess who I ran into." I'm FaceTiming him and I'm like, "I've turned into this person that... it's... I'm sorry".'
However, while Saint has made his preference for his favourite teams and players clear, Kim has not chosen one club to support yet.
Speaking to GQ last month, she said: 'My son is everything Cristiano Ronaldo. We're definitely Inter Miami fans. We had so much fan at PSG, every stadium is so different. At Arsenal, everyone's been so good.'
But when it comes to herself, she said: 'I don't know every team, I'm not going to pick a team just yet. But yeah, I'm a soccer mom.'
But, her outfit choice in her latest Instagram post suggests that the Red Devils have received her support.
However, this news has not come as a welcome surprise to Manchester United's fans due to the fabled 'Kardashian curse'.
Arsenal fan jokingly called on Kim to to stay away from their matches following claims of a 'curse' after she attended their match in March.
The hosts lost the game to Sporting Lisbon on penalties and were knocked out of Europe's second-tier competition and then suffered a dreadful run of form in the following matches.
Kim's visit to see PSG also ended with the French side suffering a shock home defeat to Rennes.
Manchester United are facing up against Bayern on Tuesday night in the Champions League and need a win to progress.
Several fans took to Kim's post to joke that it was a sign of their impending doom that she was sporting the club's hat.
One supporter replied saying: 'It’s over. We’re done. Never beating Wolves again,' while another echoed: 'We’re losing today 100 per cent cuz of this'.
A third joked: 'Now we know why the bad luck lol' while someone else added: 'We’re already terrible at football we don’t need the Kim curse.'
Manchesterisblue
490
This woman changing clubs like how she kept changing her husbands 😂😂
kuwknopryz
320
Football is the most followed sport in the world. she's simply using this to expand their family business which is fame. We see right through her games
Gunnerneko
233
Kardashian doesn't support any teams she support herself...the kids might like certain teams but Kim just go with whatever