Atletico Madrid are to pay €44 million up front to ensure that the transport infrastructure around their new Wanda Metropolitano ground is completed in time to play games there next season.
Atletico will leave the Vicente Calderon this summer and move to the former La Peineta athletics stadium on the outskirts of the city, completing a move that is over three decades in the planning.
There have been concerns about access for fans to the 70,000-seater stadium, with opposition city councillor Mercedes Gonzalez joking last September that "helicopters" would be needed to bring supporters to the new ground as road and rail links would not be ready.
But reporters shown the ongoing works at the stadium site on Friday by Atletico chief executive Miguel Angel Gil Marin were told that the club would put forward a total of €44m to pay for the required road-links, parking provision and landscaping -- although they would then receive about half this amount back from the Madrid city council.
"Atletico are making a huge financial effort, over and above the initial estimate, to make this a better stadium, better connected and all done more quickly," Gil Marin told reporters during the visit.
"This will be the minimum infrastructure required to get the license to hold sporting events in the stadium. Of this €44m around €20m will be taken off the price of the site."
Works on these links is to begin in March, and all should be ready for early September, meaning that Atletico will likely play their first few 2017-18 La Liga games away from home.
"We have six months to do a job that takes nine months, so the work will done round the clock," Gil Marin said. "The team will be playing there from September. It will be done in time. There is no Plan B."
Further work will then take place in the area surrounding the stadium during 2018 to provide better links to the nearby road network.
"The stadium will have the best transport links in Europe," Gil Marin added.
The total cost to Atletico for the rebuilt stadium is reportedly €300m. Financing for construction has come from Mexican billionaire Carlos Slim's Inbursa Bank, who provided €160m in February 2016 to finish work which had stalled previously. China's Wanda Group purchased 20 percent of Atletico's shares in January 2015 for €45m, and has paid an unknown sum for the naming rights to the new ground.
Gil Marin assured reporters during Friday's visit that neither he nor fellow shareholder and club president Enrique Cerezo had any plans to sell the remainder of their shares, to either Wanda or anyone else.