http://mlb.mlb.com/NASApp/mlb/mlb/wbc/rosters.jsp

Dunn, Adam United States CIN
Lopez, Felipe Puerto Rico CIN
Pena, Wily Mo Dominican Republic CIN
Valentin, Javie Puerto Rico CIN

Here is the ticket link:

http://mlb.mlb.com/NASApp/mlb/mlb/wbc/tickets.jsp

I was thinking about going until I saw that the US didn't play in Florida although, I wouldn't mind seeing the Dominican team.