Instructions
Call up the online menu specific to your version of "Madden." You will be required to sign into the Electronic Arts servers and the Internet if you haven't already.
Select a "quick match" setting to join an online game. If roster updates are available, a prompt will display and you will be required to download the roster update. As an alternative, enter the "Depth Chart" sub-menu. Download the roster update from there if it's available.
Push an affirmative response, such as "Yes, download and save roster update," when the game asks for confirmation.
Play the online game or quit before it begins if you wish to play offline. Saved roster updates will show up in any subsequent games.