British number two Aljaz Bedene says he has a "strong case" to put before the panel that will decide on Sunday if he can represent Great Britain.
Bedene, 26, played three Davis Cup ties for Slovenia before becoming a British citizen in March 2015.
That was after the International Tennis Federation introduced a rule preventing players from representing more than one country.
"I've got a strong case, and I'm still positive," Bedene told BBC Sport.
The case will be heard in Moldova, with Bedene appearing by video link from Irving in Texas, just a few hours before competing in the final of a Challenger event.