For some teams, it is already time to look ahead to the 2013 season. Even the teams that will be playing long into October eventually need to plan for next season.
While a roster can change a lot over the year, teams hope that their Opening Day lineup is good enough to get them to the postseason.
There will be many trades and free agent signings before the 2013 MLB Opening Day as teams try to put together their ideal roster.
The following is guide to what 2013 MLB Opening Day rosters could look like for all 30 teams.