"In the fourth inning of today's Gulf Coast League game, first baseman Manuel Hilario slid into second base [feet first], colliding with the Nationals shortstop. He took a knee to the head and immediately began to experience seizures and remained unresponsive.
"After treatment on the field he was airlifted to an area hospital via helicopter. At the hospital he was administered a CT scan, which appears to be normal. He is talkative, in good spirits and could be discharged tomorrow."
Hilario, 22, has been in the Mets organization since 2011. He is batting .237 in 32 games this season.
Anthony DiComo is a reporter for MLB.com. Follow him on Twitter @AnthonyDicomo. This story was not subject to the approval of Major League Baseball or its clubs.