Enyeama made a string of fine saves
Tunisia's Etoile Sahel will take a slender advantage into the second leg of the Champions League final after a 2-1 win over Enyimba of Nigeria in the first leg on Saturday.
But the Tunisian side may well rue the plethora of wasted chances in Sousse's Stade Olympique when the two sides collide again in Abuja next Sunday.
Both sides finished the match with ten men as Etoile came from a goal down to beat the Nigerian club, who were the first to have a man sent off after 31 minutes.
Spurred on by a passionate capacity crowd of 25,000, Etoile enjoyed far more possession than their opponents throughout the match.
However, they were unable to deliver the killer blow against an Enyimba side who had Onyekachi Okonkwo dismissed for a second bookable offence.
The reigning African champions took the lead against the run of play in the 15th minute when Emeka Nwanna scored from close range after a good run down the right by full-back Yusuf Mohammed.
Nwanna was on hand to stroke the ball home after David Tyavkase miscued his shot from inside the box.
The Etoile players protested that Nwanna was in an offside position but the Algerian referee Mohamed Benouza stood his ground.
After missing a great chance from close range, Imed Mdhebi made amends a minute before the break when he equalised from the penalty spot after Opara was brought down in the box by Obinna Nwaneri.
The home side then took a decisive lead in the 54th minute when an unmarked Kandia Traore headed home a fine cross from the impressive Imed Mdhebi.
The goal stemmed from some shoddy marking by the Enyimba defence, with two other Etoile players lining up to stab home Mdhebi's cross.
In the 72nd minute, Etoile's Lotfi Sellemi was shown a direct red card for a two-footed lunge on an opponent and both he and Okonkwo will miss the second leg in Abuja next week.
The 2-1 scoreline flattered Enyimba but the Nigerians will be happy to take a vital away goal into the second leg on home territory.