By Robin Millard

LONDON, June 26, 2009 - China's Li Na admits she faces a tough task if she is to repeat her 2006 run to the Wimbledon quarter-finals.

The 19th seed takes on Polish number 11 seed Agnieszka Radwanska in the third round at the All England Club - a tie sure to revive painful memories for the Chinese.

Li was four games into a match with Radwanska at Eastbourne, the last pre-Wimbledon grasscourt tournament, when she had to pull out with an abdominal injury.

The Chinese number two said it was impossible to think about repeating her 2006 achievements with Radwanska standing in her way.

"It's too early to think about the quarter-finals because the next opponent is very tough," Li told AFP.

"Radwanska is young and also she's so smart. It's not easy to play her.

"Last time I played her was in Eastbourne and she played a lot of drop shots but I was injured, I couldn't run. So after four games I withdrew.

"She will play a lot of drop shots, but I will go for power. I will try to play my tennis. I don't want to change anything."

Li added: "It's also a good experience for me. I like the challenge for myself. If you play a seed, its always a tough match. You can never say, oh, this was easy."

The only match Li and Radwanska have completed was in Monterrey earlier this year. Li won in three sets on a hard court but said the Pole might switch up her game on grass.

"She's so smart, she might try different things, so I have to be ready every point," Li said.

Radwanska already has form in knocking out Chinese players: she edged out Peng Shuai 6-2, 6-7 (7/6), 9-7 in a thrilling, three-hour second round clash.

Li made it through to the third round with a straight sets victory over Belarusian world number 82 Olga Govortsova.

The 27-year-old notched up a 6-4, 6-2 victory on Court 7, sealing victory with a passing shot down the line.

Li reached the final at Birmingham, another pre-Wimbledon grasscourt warm-up before her injury scare in Eastbourne.

"Right now I'm taking a lot of tablets to stop the pain, because I didn't have time to see the doctor often; also I couldn't get an injection so all I can do is take medication and ask the physio to help me," the right-hander said.

--AFP