Former Real Madrid goalkeeper, Iker Casillas is currently recovering in hospital following emergency surgery and will sit out the rest of the season. Portuguese newspaper A Bola claimed the 37-year-old felt pain on the pitch during a training session led by Porto coach Sergio Conceicao. Casillas who joined Porto from Real Madrid in 2015 has won two trophies, including a league title in 2017-18, featuring 156 total times in nearly four full campaigns. 
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