The former Bulgaria defender Trifon Ivanov has died at the age of 50, the country’s football association has announced.

The centre-back helped Bulgaria to the semi-finals of the 1994 World Cup and also played at Euro 96. Ivanov made a total of 77 appearances for his country and the Bulgarian Football Union said he was one of the best players in the nation’s history when they announced his death on Saturday.

“Trifon Ivanov will remain in the history of Bulgarian football as one of the best defenders,” a statement said. “Before being a great player, Trifon was a great man with great heart and always ready to help. We all mourn the loss of a true friend. Rest in peace, Trifon.”

Ivanov’s club career included spells at CSKA Sofia, Real Betis and Rapid Vienna.