Nigerian forward Endurance Idahor has died of a suspected heart attack while playing for Sudanese Premier League side El-Merreikh.
Reports suggest Idahor, 23, was unable to breathe after a tackle left him on his back 15 minutes into the match on Saturday. He was taken to hospital but was pronounced dead on arrival.
In a statement, the club announced: "We will assure that justice takes place."
Nigeria assistant coach Fatai Amoo, who was in charge of Idahor during his time with Julius Berger FC, said he was distraught to hear the news of the player's death.
"It is a terrible loss to Nigeria, though he didn't play at the senior level, but he portrayed Nigeria well with his heroics while in Sudan," he said on NEXT.
"I have so many memories of him, but one that particularly stuck with me was the second goal in the CAF Cup final first leg in Abeokuta between Julius Berger and Etoile du Sahel of Tunisia. He scored a spectacular shot from outside the box that the Etoile goalkeeper, who incidentally is their national keeper now, was stunned and could not even move.
"While we were going for the second leg, Tunisians prayed that he should not make the trip, and just two days before travelling, he hurt his ankle in a friendly game, but I played him all the same because I knew he will keep the Tunisians busy. He was a classic player."