Fantasy Keeper is an official Chrome extension for ESPN Fantasy Baseball, created by the team at ESPN. This extension has been developed for users of Fantasy Baseball to improve their game. It displays additional custom player information stored in Google Sheets and provides players with an additional opportunity to view and share additional information.

Create a Google Sheet containing two columns:

MLB Player First Name

MLB Player Last Name

The sheet can be accessed by any user and updated by the user. Once the sheet is created set its view properties to the public, publish the sheet (File->Publish from Google Sheets), and enter its sharing link in the Fantasy Keeper Chrome Extension Options.

Finally, select which columns in your Google Sheet you want Fantasy to display.