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Nadal has his work cut out for him

TENNIS: Rafael Nadal knows he has his work cut out if he is to beat Jo-Wilfried Tsonga tonight and reach the semi-finals of the Barclays ATP World Tour Finals in London.

The previous results in Group B mean it is a straight fight between the two players for the second spot in the table behind Roger Federer.

Nadal has won six of his previous eight matches against Tsonga and thrashed the Frenchman for the loss of only six games in a Davis Cup semi-final clash in September, but that was on clay and it will be a very different contest at the O2 Arena.

The hard indoor surface is much more favourable to Tsonga's aggressive game, while the memory of Tuesday's 6-3 6-0 thrashing by Roger Federer will still be fresh in Nadal's mind.

The Spaniard said: “We have played a lot of matches against each other. He's an explosive player, an aggressive one. I know that I have to play aggressive, I have to play (my shots) long. If I play short, it will be very difficult.

“I have to be solid with my serve. If not, it is impossible, because to have breaks against him is always a really difficult thing.”