USA sets up final against Poland in United Cup

Former champions the United States returned to the final of the United Cup mixed team tournament with a fortuitous victory over the Czech Republic on Saturday and set up a title clash with Poland, who hammered Kazakhstan.

Tomas Machac looked set to draw the Czechs level at 1-1 in their semi-final and was serving for the contest against Taylor Fritz, but an apparent cramp took its toll and he…