Nigerian club Enyimba became the first qualifiers for the CAF Champions League semi-finals after a dramatic 2-1 win over Al-Hilal in Sudan on Friday.
A last-minute Samuel Tswanya goal from the penalty spot earned the visitors maximum points after leading competition scorer Edward Sadomba had given Hilal an early lead that Valentine Nwaebili cancelled out midway through the second half.
Victory lifted Enyimba on to 11 points from five matches in the premier African club championship and they are certain to finish first in the four-team Group A whatever the outcome of the remaining games in the section.
The club from south-eastern city Aba became the first Nigerian winners of the competition in 2003 by defeating Ismailia of Egypt and successfully defended the title a year later with a penalty shoot-out win over Etoile Sahel of Tunisia.
Enyimba are unbeaten in Group A having defeated Hilal, Cotonsport Garoua of Cameroon and three-time champions Raja Casablanca of Morocco once and drawn two other games. They host Cotonsport next Sunday.
A rare defeat in sauna-like Omdurman could prove costly for twice runners-up Hilal, who will surrender second place to Garoua if the Cameroonians win at home to Raja on Saturday.