Greenberg, who was hit in the head during his first and what ended up being his only major league plate appearance, will receive his first official MLB at-bat on Oct. 2 when the Marlins take on the New York Mets.
After Greenburg was struck on the head, he suffered from vertigo and vision problems on top of other post-concussion symptoms. He went on to play in the minors for the Cubs, Los Angeles Dodgers, Kansas City Royals and Los Angeles Angels, but he hasn’t returned to the majors since.
Greenburg, now 31, has spent the past three years playing for the Bridgeport Bluefish of the Atlantic League. In 2011 he hit .259/.393/.422 with eight doubles, 12 triples and 10 home runs over 379 at-bats as the team’s primary center fielder.