Education
Lehigh University.
Lehigh University.
Greiner usually plays as forward. He played four seasons for the Lehigh Mountain Hawks men"s basketball team On 17 July 2013 he signed with the Dutch team Landstede Basketbal from Zwolle.
Foreign the 2014-2015 season, Greiner signed with AEK Larnaca in Cyprus.
Greiner signed a training camp deal with the London Lightning of the National Basketball League of Canada (NBL) for the 2015-2016 season. He joined the team in an exhibition game against Raptors 905 of the National Basketball Association Development League on November 9, 2015.
Greiner appeared on the starting lineup, but the Lightning lost the contest, 111–126. Landstede Basketbal.