Borussia Dortmund are trying to convince Erling Haaland to stay at the club until 2023, according to Sport Bild.
The report states that Haaland's equipment contract with Nike expires at the end of the year and Puma, the brand that outfits Dortmund, could try to strike a deal with the Norwegian as part of the push to get him to stay.
It is said that Dortmund are willing to double Haaland's wages if he does agree to stay until 2023, which would require the player refusing to move elsewhere if someone paid his release clause.
Said clause becomes active at the end of the current season.
Source: transfermarketweb.com