KRALJEVO, Serbia (AP) — Serbia won both reverse singles for a 5-0 victory against Croatia in the Davis Cup World Group first round on Sunday.

Filip Krajinovic defeated Franko Skugor, 6-4, 6-2, and Viktor Troicki defeated Mate Delic, 6-4, 6-3.

''We hoped Novak Djokovic wouldn't play, but that was just wishful thinking,'' Croatian coach Zeljko Krajan said. ''Everything was great, except for the players, who were ruthless.''

Troicki said, ''We played well all the matches ... We feel great.''

The reverse singles were shortened because Serbia already had an insurmountable lead after winning the doubles on Saturday.

Serbia will play either Argentina or Brazil in the quarterfinals.

It was the second meeting between Serbia and Croatia since the breakup of Yugoslavia in the early 1990s. In 2010, Djokovic led Serbia to a quarterfinal victory in Split en route to its first and only title. Croatia won the Davis Cup in 2005.