Diego Simeone inadvertently told a woman about the death of her husband on Twitter.
The Atlético Madrid manager revealed his "pain" at the death of friend and journalist Jorge "El Topo" López, who was killed in a car crash in São Paolo ahead of Argentina's World Cup semi-final against Holland.
Simeone included Lopez's wife, Veronica Brunati, in his tribute tweet, only she seemed to be unaware of the news.
"He was not only a great journalist, but was also a friend. Much pain. My condolences to @verobrunati and family. RIP Jorge 'Topo' Lopez," Simeone said.
No sólo se fue un gran periodista, se fue también un amigo. Mucho dolor. Mis condolencias a @verobrunati y familia. DEP Jorge "Topo" López.— Diego Pablo Simeone (@Simeone) July 9, 2014
Brunati quickly replied: "No. Diego, don't tell me that. Please someone call me."
@Simeone no— veronica brunati (@verobrunati) July 9, 2014
López, 38, died on Wednesday after the taxi he was travelling in was hit by a stolen car fleeing police in Guarulhos, near São Paulo.
@Simeone Diego no me digas eso— veronica brunati (@verobrunati) July 9, 2014
@Simeone por favor alguien que me llame estoy en un hotel en san pablo en el quality— veronica brunati (@verobrunati) July 9, 2014