Czech Tomas Berdych has not sealed his spot at the ATP season-ending event -- ATP World Tour Finals after the men's tennis governing body,ATP, admitted they had made a mistake on Saturday by saying he had qualified.
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The 26-year-old remains well-placed along with Frenchman Jo-Wilfried Tsonga and Mardy Fish to fill the remaining three spots in the eight player field.
The final line-up will be decided at this week's Paris Masters.
Novak Djokovic - who is struggling with a shoulder injury - Rafael Nadal, Andy Murray, Roger Federer and David Ferrer have already qualified for the event.
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