Croatia are the favourites heading into the Davis Cup final in Zagreb, says Argentina's Juan Martin del Potro.
The home side are looking to win the team title for the second time, while Argentina hope to improve on a record of four final defeats.
Marin Cilic plays Federico Delbonis in the opening singles on Friday, followed by Ivo Karlovic against Del Potro.
"We are hoping that this long quest for the cup title will come to an end," said Del Potro.
"They are at home and have a very strong team, but we are looking forward to a great weekend and we are also very proud to be in another final.