The LA Dodgers and Boston Red Sox are in the 2019 World Series.
Here is a list of Canadians who played for the Red Sox and LA Dodgers (not Brooklyn).
Boston Red Sox:
Ryan Dempster 2013
Erik Bedard 2011
Jason Bay (2008-09)
George Kottaras 2008-09
Eric Gagne 2007
Adam Stern 2005-06
Rheal Cormier 1995, 1999-00)
Matt Stairs 1995
Paul Quantrill 1992-94
Pete Hoy 1992
Mike Gardiner 1991-92
Fergie Jenkins 1976-77
Ted Bowsfield 1958-60
Phil Marchildon 1950
Ty Laforest 1945
Oscar Judd 1941-45
Frank O’Rourke 1922
Bunk Congalton 1907
Art McGovern 1905
Bill O’Neill 1904
Larry McLean 1901
Win Kellum 1901
Fred Lake 1891, 1897, 1910
LA Dodgers
John Axford 2018
Jamie Romak 2014
Blake Hawksworth 2011
Russell Martin 2006-10
Paul Quantrill 2002-03
Eric Gagne 1999-06
Steve Wilson 1991
Tim Harkness 1961-62
Billy Harris 1959