The Swiss tennis ace, Mark Rosset, has pulled out of the Milan Indoors tournament after suffering back pains. The eighth seed and defending champion quit the second round match against Britain's Greg Rusedski in the second set.
Rosset retired after losing the first set 6-3, and the first game of the second set.
During the first set, Rosset received attention from his trainer for back trouble before continuing. But the tall Swiss had difficulty in serving and his movement was restricted.
Rusedski now goes through to the quarter-finals of the tournament to face Russia's Marat Safin.
In other matches, the Swiss, Ivo Heuberger, was defeated in straight sets by Russia's Yevgeny Kafelnikov. Heuberger was soundly beaten 6-2 6-3.
There was some good news on Thursday for Swiss tennis players.
Roger Federer proceeded to the quarter-finals after he beat France's Cyril Saulnier. The seventh seed won his match 2-6 6-3 6-4.
Federer will now face the Croatian, Goran Ivanisevic.
swissinfo with agencies