The Flying Eagles qualified for the knockout phase by the skin of their teeth after holding Ukraine to a 1-1 draw in Bielsko-Biała on Thursday.
Youssouph Dabo’s Senegal were runners-up at the 2019 Africa U20 Cup of Nations, where they bowed to Mali on penalties.
They are unbeaten in Poland – winning two games and getting a draw - without conceding any goals, and finished as the winners in Group A.
Mali, meanwhile, were rewarded for their second place finish in Group E with a date against Argentina in Bielsko-Biała on Tuesday.
Should they scale the hurdle against the South American, a tie against Italy or Poland awaits them in the last eight.