Injury woe forces Nadal to quit Paris Masters
Rafael Nadal has pulled out of the Paris Masters with a right knee injury, throwing his participation at next week's ATP Finals in London into doubt.
The Spaniard beat Pablo Cuevas in the third-round of the tournament with heavy strapping on his knee, but then announced he would be unable to play the Serbian qualifier Filip Krajinovic in the next round.
Nadal said that "the pain during the match (on Thursday) was too much."
He added: "The way that I am today. I do not see myself playing three more matches. The knee is always bothering a little bit but sometimes it's worse."
However he was reluctant to comment on his chances of playing at the season-ending ATP Finals, where he is slated to be the top seed.
"It is not about London, it is about the longer term" he added.
Nadal struggled through his third-round win over Cuevas, with BT Sport tennis analyst Annabel Croft remarking how hampered his serve was.
Meanwhile, Juan Martin del Potro's surge towards the ATP Finals fell agonisingly short when he was beaten in the Paris quarter-finals by John Isner.
Victory for Del Potro, who was well out of the race before reaching the US Open semi-finals, would have assured him of one of the eight spots in London.
The popular Argentinian made his most recent appearance at the O2 Arena in 2013 before serious wrist problems nearly ended his career.
He made a concerted push to try to qualify following his heroics in New York, reaching the semi-finals of the Masters event in Shanghai, winning in Stockholm and then losing narrowly to Roger Federer in the final in Basel last weekend.
But a weary Del Potro came up just short, losing 6-4 6-7 (5/7) 6-4 to Isner, and the only way he could now play at the O2 would be if Nadal or one of the other competitors withdrew.