While the team left for St. Louis following Sunday's game, Prado stayed behind in Phoenix on Monday and saw an eye doctor, who diagnosed Prado with having an allergic reaction.
"I was concerned it was only one eye," Prado said. "That's why I wanted to see a doctor to see if there's something else in there. But everything was fine and it was just an allergy in my left eye. With the medicine it goes away."