Polish teenager Agnieszka Radwanska completed the destruction of the top four seeds at Wimbledon when she beat Svetlana Kuznetsova 6-4 1-6 7-5 in the fourth round on Monday.

The Russian fourth seed led 4-1 in the decider but could not sustain the momentum and bowed out when she dumped the ball into the net on Radwanska's second match point.

"I did it!" grinned Radwanska moments after coming off court.

After the shock exits of top trio Ana Ivanovic, Jelena Jankovic and Maria Sharapova, Kuznetsova became the latest big name to join the Wimbledon scrapheap.

Radwanska, seeded 14, reached the quarter-finals of the grasscourt championships for the first time and will next face twice former champion Serena Williams.

Following Jankovic's demise earlier on Monday, Kuznetsova's defeat means it is the first time since seedings were introduced in 1927 that the top four women's seeds have fallen before the quarter-finals.

Kuznetsova blamed herself for her downfall.

"Her game is very tough for grass court. Mine is not so tough. For me, I was playing unbelievably well for grass court. I was surprised by myself," Kuznetsova said.

"I don't know why at that moment (4-1 up in the decider), but I stopped doing whatever I was doing that was bringing me success.

"Suddenly I changed the tactics. You cannot change winning tactics and I just lost my chance."

The 23-year-old would have fancied her chances of beating Radwanska since she held a 4-1 advantage in their head-to-head record and had beaten her in the third round here last year.

Yet it was the 2004 U.S. Open champion who looked like the less experienced player on Monday.

Kuznetsova seemed to be heading for an early exit when she lumbered around during the first before storming back in the second set to restore order.

The Russian, bidding to reach the last eight for the fourth time in six appearances at the All England Club, appeared to have overcome any danger of another upset when she broke early in the decider to steam ahead 4-1.

But Radwanska, who had warmed up for Wimbledon by capturing the title in Eastbourne, never lost belief and kept chipping away at Kuznetsova's resistance before she finally drew level at 4-4.

Kuznetsova had chances to break in the ninth game but was unable to tuck away that final point.

Her 19-year-old opponent pounced two games later to nose ahead 6-5 after Kuznetsova scooped the ball wide on break point.

The Russian punched away a sliced backhand volley in the next game to save the first match point but that proved to be her last hurrah.

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