Short answers, pulled from the story.
Casillas captained Spain to their first World Cup title on the 11th of July 2010, with a 1-0 win over the Netherlands in extra time in South Africa. He won the Golden Glove as the tournament's best goalkeeper, keeping a joint-record five clean sheets and conceding only two goals across seven matches.
Casillas was nicknamed San Iker, meaning Saint Iker, for his precocious performances as a youngster and his ability to produce acrobatic and decisive saves at critical moments. The nickname reflected both his on-field heroics and his composure under pressure.
Casillas made 177 UEFA Champions League appearances, the second most in the competition's history behind Cristiano Ronaldo. He holds the record for the most consecutive seasons played in the competition, with twenty.
On the 1st of May 2019, Casillas suffered an acute myocardial infarction during Porto's morning training session and was rushed to hospital. He was discharged on the 6th of May and later returned to pre-season training in July 2019 before officially retiring from professional football on the 4th of August 2020.
Casillas earned 167 international caps for Spain, making him the second-most-capped player in the national team's history behind Sergio Ramos. He also holds the record for the most international clean sheets of any goalkeeper, with 102.
At Euro 2012, Casillas went 509 consecutive minutes without conceding a goal, breaking Dino Zoff's longstanding record of 494 minutes set at Euro 1968. He kept five consecutive clean sheets and Spain won the final 4-0 against Italy on the 1st of July 2012, retaining their European Championship title.