Zambia took advantage of some shambolic Senegal defending to claim a surprise 2-1 win over the Group A favourites on day one of the Africa Cup of Nations.
Amara Traore's much-fancied side were all at sea in the first period as Emmanuel Mayuka gave Chipolopolo the lead after 12 minutes and Rainford Kalaba made it 2-0 eight minutes later.
Senegal were rejuvenated by a trio of substitutions after the break and Demba Ba hit the crossbar after being set up by his new clubmate Papiss Demba Cisse.
Dame N'Doye then pulled one back in the 74th minute, but Senegal could not find an equaliser.