<p class="title">Veteran goalkeeper Iker Casillas said "everything was under control" after suffering a heart attack in training, he posted on Twitter on Wednesday.</p>.<p class="bodytext">The 37-year-old, who has 167 Spain caps and played more than 500 games for Real Madrid, suffered what his club, Porto called an "acute myocardial infarction" in training earlier in the day.</p>.<p class="bodytext">"Everything is under control, a big scare but all is intact. Thank you very much for the messages and affection," Casillas said.</p>.<p class="bodytext">The club's statement on Wednesday said "the training session was interrupted to provide assistance," adding that Casillas was in a Porto hospital "well, stable and his heart problem solved."</p>.<p class="bodytext">Portuguese media reported Casillas had undergone surgery and his season was over.</p>.<p class="bodytext">Porto are second in the Portuguese championship, just two points behind leaders Benfica, and face Sporting Lisbon in the Portuguese Cup final on May 25.</p>.<p class="bodytext">The news prompted an outpouring of concern from fans, clubs former team-mates and opponents.</p>.<p class="bodytext">"Courage my friend. I hope you recover quickly," former Real team-mate Cristiano Ronaldo posted on Instagram.</p>.<p class="bodytext">Spain team-mate Gerard Pique tweeted: "Courage Iker, get well soon my friend!"</p>.<p class="bodytext">Former England striker Gary Lineker tweeted: "Wishing @IkerCasillas a full and speedy recovery. One of the greats."</p>.<p class="bodytext">Tennis star Rafael Nada and Spanish Prime Minister Pedro Sanchez, both Real Madrid fans, also sent their support.</p>.<p class="bodytext">"Real Madrid and its supporters wish to see their eternal captain recover as soon as possible and send him all the support of the world," the club said.</p>.<p class="bodytext">Casillas joined Real before he turned 10 and played 16 seasons with the first team before moving to Porto in 2015.</p>.<p class="bodytext">The former Spain captain turns 38 later in May and recently extended his contract with Porto to next year with the option of an additional year.</p>.<p class="bodytext">In addition to a raft of domestic honours with Real and Porto, Casillas has won one World Cup, two European Championships and three Champions Leagues.</p>.<p class="bodytext">He said Porto had told him of they wanted to keep him until he turned 40.</p>.<p class="bodytext">Casillas joins a growing list of footballers who have suffered heart attacks.</p>.<p class="bodytext">The most recent fatal attack came just last week, when experienced Burundi international Papy Faty died after collapsing during an eSwatini (formerly Swaziland) league match.</p>.<p class="bodytext">The most high-profile recent case was former captain of Fiorentina Davide Astori, who died of a heart attack in his sleep prior to a Serie A match with Udinese in March 2018.</p>.<p class="bodytext">Casillas and his partner, Spanish journalist Sara Carbonero, have two sons: Martin (5) and Lucas (2).</p>
<p class="title">Veteran goalkeeper Iker Casillas said "everything was under control" after suffering a heart attack in training, he posted on Twitter on Wednesday.</p>.<p class="bodytext">The 37-year-old, who has 167 Spain caps and played more than 500 games for Real Madrid, suffered what his club, Porto called an "acute myocardial infarction" in training earlier in the day.</p>.<p class="bodytext">"Everything is under control, a big scare but all is intact. Thank you very much for the messages and affection," Casillas said.</p>.<p class="bodytext">The club's statement on Wednesday said "the training session was interrupted to provide assistance," adding that Casillas was in a Porto hospital "well, stable and his heart problem solved."</p>.<p class="bodytext">Portuguese media reported Casillas had undergone surgery and his season was over.</p>.<p class="bodytext">Porto are second in the Portuguese championship, just two points behind leaders Benfica, and face Sporting Lisbon in the Portuguese Cup final on May 25.</p>.<p class="bodytext">The news prompted an outpouring of concern from fans, clubs former team-mates and opponents.</p>.<p class="bodytext">"Courage my friend. I hope you recover quickly," former Real team-mate Cristiano Ronaldo posted on Instagram.</p>.<p class="bodytext">Spain team-mate Gerard Pique tweeted: "Courage Iker, get well soon my friend!"</p>.<p class="bodytext">Former England striker Gary Lineker tweeted: "Wishing @IkerCasillas a full and speedy recovery. One of the greats."</p>.<p class="bodytext">Tennis star Rafael Nada and Spanish Prime Minister Pedro Sanchez, both Real Madrid fans, also sent their support.</p>.<p class="bodytext">"Real Madrid and its supporters wish to see their eternal captain recover as soon as possible and send him all the support of the world," the club said.</p>.<p class="bodytext">Casillas joined Real before he turned 10 and played 16 seasons with the first team before moving to Porto in 2015.</p>.<p class="bodytext">The former Spain captain turns 38 later in May and recently extended his contract with Porto to next year with the option of an additional year.</p>.<p class="bodytext">In addition to a raft of domestic honours with Real and Porto, Casillas has won one World Cup, two European Championships and three Champions Leagues.</p>.<p class="bodytext">He said Porto had told him of they wanted to keep him until he turned 40.</p>.<p class="bodytext">Casillas joins a growing list of footballers who have suffered heart attacks.</p>.<p class="bodytext">The most recent fatal attack came just last week, when experienced Burundi international Papy Faty died after collapsing during an eSwatini (formerly Swaziland) league match.</p>.<p class="bodytext">The most high-profile recent case was former captain of Fiorentina Davide Astori, who died of a heart attack in his sleep prior to a Serie A match with Udinese in March 2018.</p>.<p class="bodytext">Casillas and his partner, Spanish journalist Sara Carbonero, have two sons: Martin (5) and Lucas (2).</p>