The Dodgers invited A.J. Ellis and Gabriel Gutierrez, two catchers from within their minor-league system, to big-league spring training today. While that has little significance for the team or for either player — teams routinely bring about eight catchers to camp just to catch all the pitchers’ side sessions — it does bring the list of non-roster invitees to a staggering 22 — and the overall list of players coming to camp to 60. The list includes a lot of former big leaguers, guys like pitchers Mike Koplove, Tom Martin, Mike Myers, Chan Ho Park and Tanyon Sturtze and infielder Ramon Martinez, and some guys you probably never heard of, like pitchers Rick Asadoorian, Fernando Desgue and Alfredo Simon. It’s going to be a crowded clubhouse, but one of these guys ALWAYS ends up having a great spring and making the opening-day roster. I’m guessing it will be either Koplove, Martin or Myers in the bullpen and possibly Martinez. He’ll compete with Tony Abreu and Chin-lung Hu for what probably will be two utility infield spots.