Real Madrid are on the brink of completing the most expensive signing in the club's history, with a deal for RB Leipzig star Yan Diomande expected to exceed €140 million including bonuses.According to German transfer insider Florian Plettenberg, Real Madrid and Leipzig are finalising the last details of an agreement that would eclipse every transfer in the Spanish giants' history. First Ivorian in Real Madrid's history! Yan Diomande arrives in SpainSpanish daily Marca adds that negotiations accelerated significantly on Wednesday, with the two clubs overcoming the major obstacles that had previously stalled the deal.The only remaining step is Diomande's final approval, although that is not expected to present any problems.The Ivory Coast international has reportedly made it clear from the outset that Real Madrid is his only preferred destination. Although he travelled with Leipzig for their pre-season camp in Austria, he has been training individually while awaiting permission to travel to Madrid for his medical and the completion of the transfer.Real Madrid are prepared to go all in to secure the winger's signature.Real Madrid have reached an agreement worth up to €140million with RB Leipzig for the signing of Yan Diomande following lengthy negotiations.Diomande, 19, joined Leipzig on their pre-season training camp in Austria on Monday ahead of his transfer to Madrid being ratified by… pic.twitter.com/fN5gXNZKdB— The Athletic | Football (@TheAthleticFC) August 5, 2026 Reports suggest the fixed transfer fee alone will comfortably exceed €120 million, with the overall package expected to fall between €130 million and €140 million, potentially rising further through performance-related bonuses.That would surpass the fees Madrid paid for both Eden Hazard in 2019 and Jude Bellingham three years later, making Diomande the club's record signing.The transfer would also become the biggest sale in RB Leipzig's history, comfortably eclipsing the €90 million Manchester City paid for Josko Gvardiol. However, it would still fall short of the Bundesliga record, held by Ousmane Dembele's move from Borussia Dortmund to Barcelona in 2017.Arsenal’s legend critical of the transfer dealingsOne of the reasons negotiations have taken so long is an ongoing legal dispute over Diomande's commercial image rights.According to Marca, the player's former representatives at Maxidel Management have launched legal proceedings against his current agency, Roc Nation, over the commercial exploitation of his image and identity. FIFA has been informed of the case and is monitoring the process, although it is expected to act only in a supervisory role.Roc Nation also represents Vinicius Junior and Endrick, adding another layer of intrigue to the transfer.Despite speculation in England that Diomande's arrival could signal Vinicius' departure, several leading European outlets report the opposite, claiming Real Madrid are closing in on a contract extension with the Brazilian.##EDITORS_CHOICE##If both deals are completed, Vinicius is expected to remain on the left wing, with Diomande taking over on the right, while Rodrygo's future would come under increasing scrutiny. New head coach Jose Mourinho is also believed to have no immediate plans for Franco Mastantuono.Real Madrid are not expected to stop there, with Spain captain Rodri also remaining a major target before the transfer window closes.