According to MLB.com,
Hernandez was one strike away from ending the fifth inning, holding a 5-0 lead, when he threw a pitch into the dirt. The ball bounced far enough away from Clement for Carlos Beltran to try to score the Mets' first run.
Hernandez rushed in to cover the plate, and he arrived at the same time as the runner. Beltran slid hard into Hernandez.
He was administered on the field by the Mariners medical staff, insisted on continuing, and he threw one practice pitch -- then hobbled off the mound in obvious pain.
More information to come as the severity of the injury is discovered.
