After watching Mets shortstop Ruben Tejada carried off the field with a broken leg during the playoffs when the Dodgers' Chase Utley upended him, Major League Baseball is examining whether to adopt a rule eliminating slides not directly at bases on force plays. The discussion comes two years after MLB banned home-plate collisions. ''We don't want to have guys carried off the field,'' Joe Torre, MLB's chief baseball officer, said Wednesday.