When the United States faces Serbia in a quarterfinal next month, Sam Querrey and John Isner are expected to play singles in the best-of-five Davis Cup affair, from April 5-7.

U.S. captain Jim Courier should have the same squad that beat Brazil in the first round last month in Jacksonville, Fla. Querrey and the 6-foot-9 Isner will be joined by doubles greats Bob and Mike Bryan.

Courier said that "assuming everyone's healthy, I think we'll field the same squad as we did" during the 3-2 victory over the Brazilians. The 6-foot-6 Querrey beat Thiago Alves in a fifth and deciding rubber in Florida.

Serbia likely will feature world No. 1 superstar Novak Djokovic for the showdown on an indoor hardcourt at Boise's Taco Bell Arena.

The 2010 champion Serbs topped the 32-time champion Americans 3-2 in Belgrade in an opening-round battle three years ago.

The USA-Serbia winner will meet the Canada-Italy victor in the semifinals in September.