Rivers United lost 2-1 to Futuro Kings of Equatorial Guinea in the first leg of the preliminary round of the CAF Confederation Cup at the Mongomo Stadium on Saturday afternoon.
Nkama Gregoire put the hosts ahead at the end of the first half, nodding from close range.
Future Kings doubled their lead in the 68th minute.
Godwin Aguda cut the deficit when he converted from place 13 minutes from time.
Rivers United fought hard to equalize in the final stages of the game, but could not find a way beyond the home team defense.
The reverse match will take place next week on Sunday at Yakubu Gowon Stadium, Port Harcourt.