What Ails the Mets Resists an Easy Cure

Of the Mets’ many recent health concerns, one had resolved itself by Tuesday. Manager Terry Collins was back on the job, delivering the lineup card as usual before the Mets played the Pittsburgh Pirates at Citi Field. He had felt disoriented before Sunday’s game in Milwaukee — dehydration, he guessed — and was taken to a hospital. But his tests had found nothing alarming.

“Freaky things happen,” Collins said before batting practice Tuesday. “I’m just glad it’s done, and I’m glad I’m sitting where I am right now.”