"3.05
(a) The pitcher named in the batting order handed the umpire-inchief, as provided in Rules 4.01 (a) and 4.01 (, shall pitch to the first batter or any substitute batter until such batter is put out or reaches first base, unless the pitcher sustains injury or illness which, in the judgment of the umpire-in-chief, incapacitates him from pitching."