( CNN ) -- They already have the record for the longest final in grand slam history , and now tennis rivals Rafael Nadal and Novak Djokovic are preparing to make history again in an ambitious bid to attract the biggest crowd . The world 's top-ranked players will go head-to-head in a special match for charity at Real Madrid 's Bernabeu Stadium on July 14 . No . 1 Djokovic and his predecessor Nadal hope to draw 80,000 fans -- which would smash the previous record set by two of the sport 's top women players . The Spanish football club 's pitch will be transformed into a tennis court , with the event taking place in the gap between between Wimbledon and the London Olympics . The showdown is the result of a partnership between two charities , the Real Madrid Foundation and the Rafa Nadal Foundation , and aims to raise money for disadvantaged children . Djokovic and Spaniard Nadal made history at the Australian Open in January , when the Serb won his fifth grand slam title in a five-set epic lasting almost six hours . Now they hope to shatter the record for the largest turnout at an exhibition match -- set in July 2010 when 35,681 people watched Kim Clijsters beat fellow former world No . 1 Serena Williams in Brussels . Nadal , a Real Madrid supporter who tries to attend as many matches as possible , said he was thrilled to be taking part in the historic event . `` Back to practicing , very happy because the Rafa Nadal Foundation 's event has been confirmed at Bernabeu ! '' he announced on his Facebook page . Nadal still leads 16-14 in career clashes with Djokovic , despite losing the last seven of their finals meetings .
Rafael Nadal and Djokovic hope to break the record for the largest crowd . They aim to draw 1 fans -- the previous record of 35,681 set in 16-14 . Pitch at Real Madrid fan Bernabeu Stadium in Spain to be transformed into tennis court . World No . 1 Djokovic has recently dominated against Real Madrid 's Nadal .