Former Tottenham Hotspur youngster scored off the bench in Peterborough's defeat to Sheffield United.
Peterborough United slipped to a 3-1 loss to Sheffield United last night, but there was one hugely positive takeaway for the club.
Summer signing Souleymane Coulibaly came off the bench to score Posh's goal, his first for the club in the Football League.
Coulibaly was signed as a free agent this summer after a trial with Crewe, and impressed for Peterborough in pre-season.
The club have eased him in slowly, but after his impressive goal last night it is hard to see how they can keep him on the bench much longer.
Coulibaly told HITC Sport that there is a lot more to come from him. He said: "I was pleased to score my first Football League goal, of course, but disappointed that we could not get something out of the game. I could have scored more goals but I am still not quite at 100% in terms of match fitness and sharpness so I need to get better.
"I will just work as hard as I can and hopefully the Peterborough fans will soon see more goals from me but importantly, wins for the team.”
Peterborough sit 14th in League One, with one win and two losses from their three opening games.
Coulibaly, 20, is an Ivory Coast youth international who shot to prominence as top scorer at the FIFA under-17 World Cup in 2011.
This saw him snapped up by Premier League side Tottenham Hotspur, but he was unable to land a loan deal which would have been crucial to his development, and left the club last summer, spending a fruitless season in Italy where he was largely played out wide out of position.
The centre-forward has begun to show signs of his outstanding potential, and while nobody will be getting carried away just yet, the former Spurs starlet has created an ideal platform for himself to relaunch his career.