Austria's Andreas Haider-Maurer, Oliver Marach, Alexander Peya, Juergen Melzer and team captain Clemens Trimmel, from left, celebrate after winning their world group first round Davis Cup tennis match against Russia in Wr. Neustadt, Austria, Sunday, Feb.12, 2012. Melzer defeated Russia's Alex Bogomolov 6-2, 6-4, 6-1 Sunday to help Austria reach the quarterfinals of the Davis Cup for the first time since 1995.
 

Janko Tipsarevic of Serbia celebrates after winning the Davis Cup World group first round tennis match against Michael Ryderstedt of Sweden. Serbia will advance after defeating Sweden 4-1.
 

Austria's Juergen Melzer returns the ball to Russia's Alex Bogomolov during their world group first round Davis Cup tennis match.
 

Michael Ryderstedt of Sweden returns a ball to Janko Tipsarevic of Serbia.

Swiss superstar Roger Federer returns a ball against Americans Mike Bryan, left, and Mardy Fish during the Davis Cup World Group first round doubles match Saturday in Fribourg, Switzerland. The U.S. swept Switzerland to advance to the quarterfinals.
 

Stanislas Wawrinka, left, and teammate Roger Federer react after winning a point against Mardy Fish and Mike Bryan during the Davis Cup World Group first round doubles match between Switzerland and the U.S.
 

Argentinian doubles team David Nalbandian, foreground, and Eduardo Schwank defeated German duo Philipp Petzschner and Tommy Haas in the Davis Cup first round match in Bamberg, Germany, on Saturday. Argentina won and advances.
 

U.S. Davis Cup team captain Jim Courier, left, celebrates with Mardy Fish after the American team won the doubles match against Roger Federer and Stanislas Wawrinka. The victory eliminates Switzerland and sends the Americans on to the quarterfinals.
 

Spain's Marcel Granollers, top, competes against Yuriy Schukin during a first round Davis Cup doubles match Saturday in Oviedo, Spain. Both players' doubles partners are out of view.
 

Mike Bryan, right, and Mardy Fish celebrate their victory against Roger Federer and Stanislas Wawrinka in the Davis Cup World Group first round doubles match Saturday.
 

Swiss Davis Cup player Roger Federer, left, moves toward the ball but it's teammate Stanislas Wawrinka, right, who makes the return against the US team of Mardy Fish and Mike Bryan during the Davis Cup World Group first round doubles match on Saturday.
 

Russia's doubles player Nikolay Davydenko, top, watches partner Mikail Youzhny return the ball to Austria's Alexander Peya and Oliver Marach during their world group first round Davis Cup tennis match in Wr. Neustadt, Austria, on Saturday.
 

Argentinian players and coaches celebrate the doubles win of David Nalbandian and Eduardo Schwank over the German pairing of Philipp Petzschner and Tommy Haas in Davis Cup first round action between Germany and Argentina in Bamberg, Germany, on Saturday.