WARSAW (Reuters) - Chinese e-commerce group Alibaba , U.S. online retailer eBay Inc , and private equity firm CVC Capital Partners are among the bidders for Eastern Europe's No.1 auction website Allegro from South Africa's Naspers , sources said.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=NzLbSWR4Ybs:cjLN6k1ka0I:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=NzLbSWR4Ybs:cjLN6k1ka0I:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=NzLbSWR4Ybs:cjLN6k1ka0I:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=NzLbSWR4Ybs:cjLN6k1ka0I:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=NzLbSWR4Ybs:cjLN6k1ka0I:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/NzLbSWR4Ybs" height="1" width="1" alt="" />