John Isner and Sam Querrey will lead the host United States against world No.1 Novak Djokovic and his Serbian teammates in a Davis Cup quarter-final next week, US captain Jim Courier said on Tuesday.
The American roster will also include the world No.1 doubles tandem of Bob and Mike Bryan against a Serb team of six-time Grand Slam winner Djokovic, No.44 Viktor Troicki, No.338 Ilija Bozoljac and doubles standout Nenad Zimonjic.
The winner of the April 5-7 matchup on an indoor hardcourt in the Rocky Mountain venue of Boise, Idaho, will face either Canada or Italy in a September semi-final tie.
The Americans, who defeated Brazil in the first round, lost their only prior Davis Cup meeting with Serbia 3-2 in the opening round at Belgrade in 2010, when Djokovic led Serbia to the title.
"This team fought hard in the first round against Brazil and we expect a stern challenge when we face the Serbians in the quarter-finals," Courier said.
Querrey, 25, became the US No.1 last week and has jumped to 20th in the world rankings, passing 23rd-ranked Isner, 27. The Bryans, 34-year-old twin siblings, are 20-3 in Davis Cup history and won Olympic men's doubles gold at London.