In January 1920, Lasker and Capablanca signed an agreement to play a World Championship match in 1921, noting that Capablanca was not free to play in 1920. Because of the delay, Lasker insisted that if he resigned the title, then Capablanca should become World Champion. Lasker had previously included in his agreement before World War I to play Akiba Rubinstein for the title a similar clause that if he resigned the title, it should become Rubinstein's. Lasker then resigned the title to Capablanca on 27 June 1920, saying, "You have earned the title not by the formality of a challenge, but by your brilliant mastery." When Cuban enthusiasts raised $20,000 to fund the match provided it was played in Havana, Lasker agreed in August 1920 to play there, but insisted that he was the challenger as Capablanca was now the champion. Capablanca signed an agreement that accepted this point, and soon afterwards published a letter confirming it.