St. Louis Cardinals manager Mike Matheny (right) jumped the gun in announcing his NLDS roster before Dodgers manager Don Mattingly. (Associated Press photo)

Mark Ellis won’t get the chance to face his former team, as the veteran second baseman was left off the St. Louis Cardinals’ National League Division Series roster.

Ellis, 37, is batting .180 this season, his first in St. Louis.

Three veterans — Ellis, A.J. Pierzynski and Jason Motte — were all omitted as the Cardinals opted to bring a younger team to Los Angeles. Rosters are due tomorrow morning, and the Dodgers are expected to announce their roster closer to the deadline.

Here’s how the Cardinals’ roster breaks down:

Starting pitchers: Adam Wainwright, Lance Lynn, John Lackey, Shelby Miller

Relief pitchers: Randy Choate, Sam Freeman, Marco Gonzales, Seth Maness, Carlos Martinez, Pat Neshek, Trevor Rosenthal, Michael Wacha

Catchers: Tony Cruz, Yadier Molina

Infielders: Matt Adams, Matt Carpenter, Daniel Descalso, Pete Kozma, Jhonny Peralta, Kolten Wong

Outfielders: Peter Bourjos, Randal Grichuk, Matt Holliday, Jon Jay, Oscar Taveras

Game 1 begins at 3:30 p.m. tomorrow.