The Barcelona forward can write history with victory in the final and admits as much in his message:
Tomorrow, we will play the most important match of our lives for our country. My dreams and my hopes are being fulfilled due to the hard work and sacrifice of a team that has given everything from match one. We knew it was possible. Our people, the Argentineans, they have carried us here. But the dream is not over yet, tomorrow we want to win and we are ready! #VamosArgentina #allin
Argentina play Germany at the Maracana on Sunday night. It is the third time the sides have met in the final.
Argentina won the 1986 showpiece, but Germany exacted revenge in 1990.