A flareup of Miloslav Mecir’s chronic sore...

A flareup of Miloslav Mecir’s chronic sore back created doubt about Czechoslovakia’s lineup for its Davis Cup quarterfinal against the United States.

Mecir’s injury has limited his practice sessions, and with the series to begin Friday, the American players are not sure what to expect.

“If Mecir doesn’t play, we should win, and if we don’t then I would consider it an upset,” U.S. Captain Brad Gilbert said.