Big league pitchers might feel safer on the mound this season.FILE - In this Oct. 25, 2012, file photo, Detroit Tigers' Doug Fister reacts after being hit in the head on a hit by San Francisco Giants' Gregor Blanco during the second inning of Game 2 of baseball's World Series in San Francisco. Major League Baseball has approved a protective cap for pitchers, hoping to reduce the effects of being hit in the head by line drives.FILE - In this Sept. 5, 2012, file hoto, Oakland Athletics catcher Derek Norris, left, comes to the aid of pitcher Brandon McCarthy (32) who was hit in the head by a ball hit by Los Angeles Angels' Erick Aybar in the fourth inning of a baseball game in Oakland, Calif. Major League Baseball has approved a protective cap for pitchers, hoping to reduce the effects of being hit in the head by line drives.This product image released by Vizion Group on Tuesday, Jan. 28, 20134, shows the isoBLOX protective caps, for professional baseball players, left and right, and a youth level protective skull cap, center, for under a standard fielder’s cap, set atop sheets of the actual protective material, uniquely-formulated plates that use a combination of dispersion...