World Cup winning goalkeeper Iker Casillas has suffered a heart attack while training with Porto.
The 37-year-old goalkeeper, who won football’s greatest prize with Spain in 2010, was taken to hospital and is in a stable condition.
Casillas had been working at Olival, Porto’s training facility, in preparation for their league encounter with Aves this weekend.
According to Portuguese radio station RTP, Casillas suffered a myocardial infarction – colloquially known as a heart attack – at Porto training, but was treated quickly and is not in immediate danger.
He remains in hospital and is not expected to feature again for Porto in the remainder of their Primeira Liga season.
Casillas burst onto the scene when he made his debut for boyhood club Real Madrid as a teenager in 1999. He remained at the Bernabeu for the following 16 years.
During his club career he has won the Champions League three times – with Real in 2000, 2002 and 2014. He also won five La Liga titles and two Copa del Reys.
His crowning achievement came in 2010 when he became the first Spanish captain to lift the World Cup, after they beat Holland 1-0 in the final in South Africa.
Playing every minute of Spain’s seven games, Casillas conceded just twice, and kept clean sheets in all four of their knock-out matches.
He was central to the dominant Spain side of the era, winning both Euro 2008 and Euro 2012. He is his country’s record appearance holder, with 167 caps.
Casillas moved to Porto in 2015 and helped them win the Portuguese league title last season. He remains their No 1 goalkeeper and played both legs of the Champions League quarter final defeat to Liverpool last month.
Tributes and well-wishes have been sent from around the world of football, including by one of his successors as Real goalkeeper, Thibaut Courtois.
His former Real team mate, Sergio Ramos, tweeted three praying emojis, while fellow goalkeeper Loris Karius said he was ‘shocked at the news’.
Casillas is married to Spanish sports journalist Sara Carbonero. They have two children – Martin, five, and Lucas, two.