He doesn't intend to retire, Casillas starts training with Porton.

The Spanish porter has put health problems aside and will start training with the Portuguese team. Surprise from Iker Casillas. Although there was speculation that he would withdraw from football after the heart attack several months ago, the former Real Madrid captain has changed his mind as he continues to play. The 37-year-old appeared on the day [...]
Surprise from Iker Casillas. Although there was speculation that he would withdraw from football after the heart attack several months ago, the former Real Madrid captain has changed his mind as he continues to play.
The 37-year-old was presented on the first day of Porto preparations for the new season, as she will honour her contract with the Portuguese club.
I'm back to work. The first day“wrote Casillas on Twitter












