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Ariel Schalit, Associated Press
Zambia's Christopher Katongo , left, tackles Senegal's Guirane N'Daw during the African Cup of Nations Group A soccer match in Bata, Equatorial Guinea, Saturday, Jan. 21, 2012.

BATA, Equatorial Guinea — Zambia surprised Senegal 2-1 in the African Cup of Nations on Saturday.

Emmanuel Mayuka put Zambia ahead with a header following a free kick in the 12th minute and Rainford Kalaba extended the lead with a clinical finish in the 20th.

First-half substitute Dame N'Doye pulled a goal back with neat control setting up a near-post finish in the 74th, but Senegal ran out of time to rescue a draw.

Earlier, Equatorial Guinea stunned Libya with a late goal from Javier-Angel Balboa to win 1-0 as the tournament opened with a double dose of unexpected results.

Group A continues with Libya vs. Zambia and Equatorial Guinea vs. Senegal on Wednesday. Group B matches start on Sunday.