Madrid were beaten 4–0 at the Bernabeu on Sunday, destroyed by Barcelona on their own ground.
The win moved the Catalans within 12 points of the league leaders, and Los Blancos didn’t take the demolition well.
Sport claim club president Florentino Perez had previously wanted to sign Haaland and El Clasico ‘reaffirmed the commitment’.
Perez will “do everything possible” to strengthen the Galactico team.
Real Madrid will ‘try to strike a double blow this summer’ by signing both Haaland AND Kylian Mbappe.
Manchester City and Real Madrid are leading the hunt for the Norway international who has a $84million release clause in his contract.
Dortmund haven’t lost hope of convincing their 21-year-old superstar to stay and are ready to give him all the time he needs to make a decision.
The sharpshooter has scored an incredible 80 goals in 81 games for the Bundesliga giants.
If he moves to the Spanish capital, Madrid icon Guti claims Haaland’s arrival would help his former club deal with veteran striker Karim Benzema’s minutes.
The former midfielder added: “Benzema is great but look at his age.
“Hopefully he can last longer, but he’s got his age and if you can spare him in games and use Haaland instead, great.”
They will try to hold off Man City, who are reportedly ready to make hitman Haaland the highest-paid player in the Premier League.
City are believed to have put together a salary of over $660,000 a week.