No big-league pitcher had ever suffered an injury like this an open dislocation of the ankle, a gruesome injury where the leg bone protrudes through the skin and come back to pitch.
Psoriasis is a genetic condition which, when triggered by certain factors such as injury or throat infection, leads to an over-production of skin cells.
Sergio Aguero, the club's top scorer, was sidelined with a freak injury: A trainer had applied a pain-killing spray to his foot and his skin reacted by exploding in a hail of blisters.