Fantasy sports teams require constant attention and care. As for real general managers, the key to putting together a winning formula on the field, court or course is having a healthy active roster. Rotoworld is your rotisserie nurse, delivering up-to-the-minute information on roster moves, injury reads and rising stars. Powered by NBCSports.com, the player news bar includes time-stamped blurbs for MLB, NFL, NBA, NHL, NASCAR, golf and college football happenings. Each entry includes a brief excerpt and source link catering to the everyday needs of fantasy fans, from casual to committed. (See the Rotoworld mobile app.)