Manchester United are pushing ahead with an exciting transfer window this summer and Borussia Dortmund striker Erling Haaland is top of their wish list.

The 20-year-old has established himself as one of Europe's most deadly forwards in recent years, shining with Red Bull Salzburg before moving to the Bundesliga.

With an affordable release clause of around £66million that comes into effect next year, Dortmund may push through a sale this summer to secure the maximum return for the Norwegian forward - with a deal likely to cost in excess of £100m.

Haaland is established as United's prime objective, to finally seal a replacement for Romelu Lukaku, but it will take an awful lot of work to land him due to the competition out there.

We've highlighted the key decision-makers who are guiding United's pursuit of the Norwegian superstar.

Ole Gunnar Solskjaer

United manager Solskjaer has a history with Haaland, with the forward having worked under Solskjaer during their time at Molde, and a reunion may be in the works.

Haaland was very young during his time working with Solskjaer but will have clearly made an impression. Solskjaer could well have an inside handle on how the forward conducts himself and works in training behind the scenes.

That relationship may still prove to be decisive in deciding Haaland's next destination and it could be something that provides United with an edge.

John Murtough

Manchester United confirmed the appointment of Murtough as the club's first-ever football director last month, putting in the framework ahead of the summer transfer window.

His relationship with United is long-standing, having first joined the club in November 2013 and moved to become head of football development in 2016. In 2018, he oversaw recruitment of United's women's team and has been heavily involved in United's overhaul of the academy and recruitment department.

With a vast knowledge of the inner workings of United from youth level to the first-team, he has an insight few in positions like his across world football will have at their clubs and he, alongside Solskjaer, is championing the pursuit of Haaland.

Murtough is United's new football director
Murtough is United's new football director

Ed Woodward

While the executive vice-chairman of Manchester United has seemingly reduced his input upon signings with the recent appointments behind the scenes, the trusted advisor to the Glazer family will certainly not be completely removed from the transfer activity.

Any signing will need to be given approval by Woodward, on behalf of the Glazers, and he already has a reasonable relationship with super-agent Mino Raiola, who represents Haaland as well as United midfielder Paul Pogba.

Marcel Bout

Chief scout at Manchester United since 2016, Bout will have been heavily involved in every United signing in the years since and manages the team that has been keeping a close eye on Haaland ever since his days at Molde.

Bout and his team will have certainly advised Solskjaer and the club's hierarchy on Haaland's strengths and any weaknesses that may have been identified in his game.

Tommy Moller Nielsen

A member of Bout's scouting team, Nielsen was the man who watched Haaland who, then a 17-year-old with Molde, scored four goals for the Norwegian outfit in a victory over Brann in 2018 - likely to be one of the first occasions United became aware of the striker.

Solskjaer himself has watched his former protégé since, as have United scouts on more than one occasion. Nielsen will have likely been involved in a number of briefings.

Darren Fletcher

Appointed technical director at Manchester United in March, Fletcher's role is overseeing the academy and young players but the former midfielder will have certainly been involved in discussions surrounding Haaland.

After all, if there was a young striker at the club who Fletcher and those behind the scenes believed could become the sort of lethal striker Haaland is, it's highly unlikely a multi-million deal for the exciting striker would be pursued.