On moving to Canada, O'Keeffe played amateur football for Toronto Celtic before joining Semi-Professional club, Hamilton Croatia for the 2010 season.
Notable non-Croat players include 1976 Canadian Olympians Kevin Grant and Olympic team captain Jimmy Douglas, as well as former United Soccer Leagues First Division All-Star Jamie Dodds.
Croatia | Hamilton | Hamilton, Ontario | Hamilton, New Zealand | Hamilton Tiger-Cats | Alexander Hamilton | Hamilton College | Hamilton College (New York) | Hamilton County, Ohio | Hamilton, Bermuda | Josh Hamilton | Booz Allen Hamilton | Hamilton, New York | Lewis Hamilton | Lee H. Hamilton | Hamilton County | Scott Hamilton | William Rowan Hamilton | Peter F. Hamilton | Linda Hamilton | George Hamilton | Andrew Hamilton | Socialist Republic of Croatia | Hamilton Township | Green Township, Hamilton County, Ohio | Gavin Hamilton | Richard Hamilton | Parliament of Croatia | Laurell K. Hamilton | Laird Hamilton |