The skipper of Spanish top flight side Espanyol, Dani Jarque, has died from a heart attack while on a pre-season training camp in Italy.
The 26-year-old Jarque died at the hotel where the team were staying in the town of Coviciana. He was found after teammates realised he had not shown for a meal.
The club said that team doctors as well as Italian paramedics tried to revive midfielder Jarque but without success.
Jarque's death comes two years after the death, also from heart failure, of Sevilla defender Antonio Puerta, who died aged 22 after having collapsed during the opening game of the Spanish La Liga season.
Espanyol confirmed the diagnosis of heart failure and said the club doctor's attempts to revive the player had failed.
"It was a heart attack," said club official German de la Cruz.
"He was talking to his girlfriend when he suddenly began to feel unwell. He told her and then stopped talking. His partner got in touch with the hotel and explained what had happened but it was too late to do anything," de la Cruz told La Sexta television.
European champions Barcelona, who are Espanyol's city rivals, sent their condolences to the Jarque's family.
Barca president Joan Laporta told www.fcbarcelona.com: "We are filled with extreme sadness at this tragic event and tonight we are in mourning.
"On behalf of Barcelona, we want to send our deepest sympathies to Espanyol for the painful loss of their captain Dani Jarque, and to his family."