Argentina won its first Davis Cup title on Sunday when Federico Delbonis swept past Ivo Karlovic in straight sets to complete a stunning 3-2 comeback win over Croatia.

Delbonis dropped to the ground after his 6-3, 6-4, 6-2 victory. His teammates fell into each other’s arms and celebrated in front of thousands of Argentine fans in the packed Arena Zagreb.

“This is fabulous. This is one of those dreams that has come true,” Delbonis said. “We somewhat felt we could do it despite trailing after the doubles.”

“I tried to keep focused to do what I had to do, that’s all I could think because if I thought about anything else it would be a disaster.”

“I’m very happy to hand my team a chance of a victory,” Del Potro said.

Argentina coach Daniel Orsanic added: “The guys were amazing today. Juan Martin won an incredible match and Federico played the match of his life.”

This was the first Davis Cup title for Argentina in the fifth final it has played since 1981. Croatia won in 2005.

Juan Martin Del Potro then rallied from two sets down to beat Marin Cilic 6-7 (4), 2-6, 7-5, 6-4, 6-3 as Argentina drew level at 2-2.