The MLB Scoreboard widget displays the games happening on a given day, and for previous games you can click to see greater detail in the game as part of the Line Score widget
The MLB Line Score widget is a summary widget of a given game, showing the runs breakdown in each innings, as well as the total runs, hits and errors. The winning/losing/save pitchers are also shown.
The Box Score widget will show live stats during a given game.
The Standings widget will display the standings for the American and National Leagues.
The Rosters widget displays the players for a specific team with additional information. The example on the right is showing the Roster for the Toronto Blue Jays.