Greg Brock is a Baseball-Player, currently playing for . Greg Brock was born in in . There are currently 511 Cards of Greg Brock in our Database including 2 rookie Cards and 510 variations Cards. The most valuable Card of Greg Brock is currently 1991 Topps Desert Shield #663 Greg Brock PSA 10 by Topps from 1991 with a worth of approx. $66.44.