Harry Maguire joined Leicester City in 2017

Five years ago Harry Maguire was playing League One football. Now he is the world's most expensive defender.

Manchester United have completed the £80m signing of the 26-year-old England centre-back from Leicester - but is he worth the money?

BBC Sport takes a look at the stats and the story behind the player.

'A student of the game always destined for the top'

Think of the best players in the world and you will think of those who excel in all the attributes needed for their position on the pitch - Cristiano Ronaldo and Lionel Messi are nigh-on perfect forwards while Kevin de Bruyne's skills, goals and passing ability make him a world-class midfielder.

Maguire, however, is not the best of the best in all areas of his game. His lack of pace is an obvious factor and something that has previously put off other clubs - Huddersfield once turned down the chance to sign him for £1m because he was deemed to be too slow.

But Maguire makes up for that deficiency with his reading of the game.

"He's a clever, clever footballer," former Sheffield United manager Micky Adams, who gave Maguire his professional debut at the Blades back in 2011, tells BBC Sport.

"He was terrific, he was very studious, and wanted to learn. He's a student of the game and takes information on board very quickly, particularly at the training ground."

Maguire was given his first professional start by Adams in the Championship at the age of 18, but his leadership qualities and football brain were evident long before then.

Former Sheffield United academy director Travis Binnion worked with Maguire from when he was 16 and remembers a player who possessed a confidence and maturity beyond his years.

"He would want to be the best in training and always wanted to do that bit more," he said.

"He never got done for pace, he was always smart. He was always very confident and felt he belonged at any level. I am not surprised to see him go to the very top."

It was while at Sheffield United's academy that he faced an opponent who could soon become a team-mate - Paul Pogba.

The two players were on opposite sides for the 2011 FA Youth Cup final, Maguire playing for the Blades and Pogba for Manchester United. Although Sheffield United lost, Maguire stood out against a team that also included Jesse Lingard and Ravel Morrison.

According to reports, external-link then Manchester United manager Sir Alex Ferguson was watching the game and called Maguire afterwards, telling him he had all the ingredients to make it to the very top.

Maguire had to wait a little while for a move to the Premier League, with Hull City signing him in 2014. Prior to that he spent three seasons in League One with Sheffield United. Despite that league not being famed for cultured defenders playing out from the back, Maguire never altered the playing style that ultimately caught the eye of Manchester United.

"What makes him an £80m player is his distribution," Michael Dawson, who played alongside Maguire at Hull City, told BBC Radio 5 Live.

"He can bring the ball out from the back, he is comfortable in tight areas. He gets out of trouble and that is what makes him an elite player."

Is he better than Man Utd have already?

Manchester United have been missing a dominant force at the back for years, arguably since Nemanja Vidic departed five years ago.

The statistics suggest Maguire will certainly provide that. Last season, he won more duels and made more clearances per game than United's main centre-back options - Victor Lindelof, Chris Smalling, Phil Jones and Eric Bailly.

Maguire's aerial prowess also makes him stand out.

On average, he won an aerial battle once every 22 minutes for Leicester last term, better than both Lindelof and Jones (37 and 27 minutes respectively) and significantly better than Bailly (49 minutes). Smalling, though, won aerial duels slightly more regularly - once every 20 minutes last term.

Premier League 2018-19 - per 90 minutes Maguire Lindelof Smalling Jones Bailly Aerial duels won 4.1 2.4 4.3 3.3 1.8 Duels won 6.3 4.5 5.9 5.6 5.2 Clearances 5.3 4.1 4.5 4.4 5.2 Passes 61 52 40 54 43 Source: Opta

How does he compare to Europe's best?

Van Dijk helped Liverpool win the Champions League in his first full season at the club

For the money they have spent, United will believe they have signed a defender who can stand alongside Europe's elite, so how do his stats compare to some of the best centre-backs across the continent?

In general, as the table below shows, Maguire is comparable in all areas, with the added bonus of being one of the most aerially dominant.

He also makes very few errors leading to goals.

Statistics since 2016-17 season Maguire Van Dijk Laporte Ramos Koulibaly Hummels Umtiti Kompany Pique De Ligt Mins played 8,326 7,492 8,439 7,253 8,672 6,170 5,512 3,442 7,975 6,447 Tackles 148 102 144 122 169 145 86 50 116 82 Aerial duels won (%) 71% 74% 67% 65% 57% 66% 65% 72% 71% 62% Interceptions 148 141 140 141 146 144 102 48 104 107 Clearances 469 499 341 268 362 172 166 167 376 317 Errors leading to goals 1 1 0 1 4 2 1 0 3 4 Source: Opta

Maguire also offers a considerable attacking threat.

Since 2016 he has directly contributed to 13 goals for Leicester - seven goals and six assists. Of the players below, only Sergio Ramos (17) has managed more.

Goals and assists since 2016-17 Maguire Van Dijk Laporte Ramos Koulibaly Hummels Kompany Pique De Ligt Goals 7 5 5 17 9 3 5 8 8 Assists 6 2 4 2 3 3 1 2 3 Total 13 7 9 19 12 6 6 10 11

So... worth the money?

That is the £80m question.

Maguire may not be the complete defender but he appears to be player that possesses the attributes United need - aerial prowess and an ability to play out confidently.

The pressure of the price tag is another obstacle the England international will have to overcome but it is a pressure he has been backed to thrive on.

"He is one of those lads who will walk into the dressing room and settle in straight away," added Dawson.

"One day you can see him being a captain of Manchester United. Give him time to settle in, and I am sure he will be a captain of that club one day."

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Additional reporting by Alistair Magowan