Johnathan Keith Gainer (born October 8, 1966) is an American former Major League Baseball first baseman who appeared in 23 games for the Colorado Rockies in its 1993 season. He is an alumnus of the University of South Alabama.
جاي غينر (بالإنجليزية: Jay Gainer) هو لاعب كرة قاعدة أمريكي، ولد في 8 أكتوبر 1966 في بنما سيتي في الولايات المتحدة. (ar)
Johnathan Keith Gainer (born October 8, 1966) is an American former Major League Baseball first baseman who appeared in 23 games for the Colorado Rockies in its 1993 season. He is an alumnus of the University of South Alabama. (en)