Manchester City and Liverpool FC have said "the thoughts of everyone" at the clubs are with their players Yaya and Kolo Toure following the death of their younger brother Ibrahim.
A statement on the Manchester club's website reads, "Ibrahim was a regular visitor to Carrington and was a popular figure among the staff and players and was extremely close to his two older brothers."
A message of sympathy was also posted on the website of Kolo's team, stating, "The thoughts of everybody at Liverpool Football Club are with defender Kolo Toure following the news of the passing of his brother, Ibrahim, aged 28."
The younger brother of footballers Yaya and Kolo Toure has died in Manchester, the Ivory Coast football association said.
Ibrahim Toure, 28, who is also a footballer, passed away yesterday, a statement said.
No reason was given for his death.
Yaya and Kolo are both currently playing for the Ivory Coast at the World Cup in Brazil.
The statement said: "A tough day for the Toure brothers. Just hours after the match Colombia v Cote d'Ivoire (2-1), Kolo and Yaya have learned of the death of their younger brother Toure Oyala Ibrahim.
"The entire Ivorian delegation to Brazil supports them in this painful circumstance."