Ukrainian No. 1 Alexander Dolgopolov on Thursday denied reports he is planning to switch his allegiance to Russia following a rift with officials.
The world No. 21 has not played for Ukraine in the Davis Cup since a 2007 defeat to Greece because of a long-running disagreement with the Ukrainian Tennis Federation.
The rift has sparked speculation he may seek to switch to Russia, where he would surpass Mikhail Youzhny as the country's top-ranked male player.
"I haven't had those plans, and I think it's more rumors than reality," Dolgopolov said.
The split with Ukrainian officials showed no sign of healing, he said.
"There's no connection at all, we don't communicate," he said. "If the federation stays the same, I don't plan [to play Davis Cup]."
Dolgopolov was the top seed for this week's Kremlin Cup, but crashed out in the second round Thursday, losing 6-3, 5-7, 7-6(6) to French qualifier Edouard Roger-Vasselin.