Polish teenager Agnieszka Radwanksa caused her second big shock in as many days when she defeated top seed Elena Dementieva of Russia 7-5 6-2 in the quarterfinals of the Luxembourg Championship on Friday.
<p><a href="http://rss.cnn.com/~a/rss/edition_sport?a=t5Ta44"><img src="http://rss.cnn.com/~a/rss/edition_sport?i=t5Ta44" border="0"></img></a></p><img src="http://rss.cnn.com/~r/rss/edition_sport/~4/29624777"/>

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