Here is the Dodgers roster and an explainer....
Catchers: Russell Martin, Gary Bennett
Infielders: James Loney, Jeff Kent, Rafael Furcal, Mark Sweeney, Chin-lung Hu, Tony Abreu
Outfielders: Matt Kemp, Juan Pierre, Andruw Jones, Andre Ethier, Delwyn Young, Jason Repko
Pitchers: Brad Penny, Derek Lowe, Chad Billingsley, Hiroki Kuroda, Esteban Loaiza, Takashi Saito, Jonathan Broxton, Joe Beimel, Scott Proctor, Hong-Chih Kuo, Ramon Troncoso.
DL: Nomar Garciaparra, Andy LaRoche, Jason Schmidt.
Now, here is where it gets tricky...3B Blake DeWitt and INF Angel Chavez are non-roster guys currently "in camp". Abreu will be DL'd on Monday, likely making room for DeWitt. But the Dodgers are still working on making a trade for a 3B/Utility infielder, so that could clear up some room, too. Chavez could be sent down, could be part of a trade, could remain. Who knows. But yes, there are 27 Dodgers for 25 spots.