ANDY Murray could risk suspension from the men's tour by pulling out of the ATP World Tour Finals in November in order to prepare for Britain's Davis Cup final in Belgium.
The world No.3 (pictured) said there would be a "question mark" over his participation in the season-ending individual showpiece in London if the Davis Cup final, which starts just five days later, was played on clay.
Belgium is expected to choose an indoor clay court partly because Murray finds it his toughest surface.
Murray may try to convince the ATP his back is simply not up to playing two events in successive weeks on different surfaces.
"If you reach the final (in London) ... you can't just play five matches against the best players in the world and then not take any days off," Murray told the BBC. "I need more time on the clay to let my back get used to it."
ATP president Chris Kermode stressed yesterday all players who qualify for London are required to play.