With a record-breaking £80 million move to Manchester in the summer of 2019, the England international became the most expensive defender on the planet.
In an interview withGary Neville's 'The Overlap' YouTube show
, the Red Devils’ skipper revealed Pep Guardiola and Ole Gunnar Solskjaer were both keen on securing his signature when he was leaving Leicester City in 2019.
"They were both interested,” Maguire said. "I spoke to both Man City and Man United, but I must say, and no disrespect to Man City, but I grew up watching a lot more of Manchester United football at Old Trafford, being at one of the biggest clubs in the world, if not the biggest, so I always had my heart set on this club.
"I spoke to Pep and the football that they play and what he's done for the club, I have great respect for Pep and the evolution he has brought to football, but it was Man United.
"My heart was set from the amount of interest they showed in me. It gave me great confidence and belief and for them to pursue it for a 12 to 15-month period of time showed how much they believed in me and how much they felt like I would be a big part of the team."
On his feelings when he was leaving Leicester, Maguire added: "With my age, I felt like I owed Leicester a lot.
"I spoke to Vichai [Srivaddhanaprabha] and he said they’d had a lot of interest from Manchester United when Jose [Mourinho] was the manager and he said ‘give me one more year, and I’ll let you go’.
"So I didn’t really push anything and as soon as I heard about the interest from United, it was something that I knew I had my heart set on and I knew I wanted to play for that club.
"But I think the age that I was, maybe 25 years old, I always knew that I had time on my hand and Vichai stuck to his word."
The 28-year-old has broken the record of consecutive Premier League appearances for Manchester United since the start of his Red Devils’ career. Ahead of his side’s upcoming Europa League final against Villarreal, Maguire is currently on the sidelines with an ankle injury.
Although United can bring an end to their four-year wait for major silverware, Maguire admits that they have performed below expectations. He added: "We dropped some silly points in silly games.
"We know we can do better in some games and be a bit more ruthless in others, and really have great belief in the bigger games that we can go and win that game.
"But the main thing is improvement. We've got to be winning Premier League titles. Second isn't good enough, and I'm sure the lads all agree on that."