"He didn't want to leave today," general manager Jon Daniels said. "But ultimately, he didn't want to get his team sick. With the energy level he brings and the strength he has, for him to agree to go home shows he is really under the weather."
The Rangers are planning an afternoon workout on Sunday at the O.co Coliseum in preparation for the season opener at 9:05 p.m. (CT) Monday against the Athletics. Banister will be managing in his first Major League game.
T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.