Kavan Markwood is the fan​ who fell from the 21-foot Clemente Wall in right field at PNC Park in Pittsburgh on Wednesday.

Right after Andrew McCutchen hit a two-run double in the seventh inning to put the Pirates ahead 4-3, players began waving frantically for medical personnel and pointing to the man, who had fallen onto the warning track.

What is the Clemente Wall? The 21-foot high right field wall at PNC Park in Pittsburgh is named after Hall of Famer Roberto Clemente.