POREC, Croatia — Bob and Mike Bryan have beaten Roko Karanusic and Lovro Zovko in doubles to keep the United States alive in the Davis Cup quarterfinals, cutting Croatia's lead to 2-1.

The Bryan brothers cruised to a 6-3, 6-1, 6-3 win Saturday on the indoor clay at Zatika Hall.

James Blake will try to even the series Sunday when he plays Croatia's Marin Cilic in the first reverse singles. Mardy Fish is set to play the final singles against Ivo Karlovic.

Blake lost the opener to Karlovic while Cilic beat Fish on Friday. Both matches went to five sets.