Define unsportsmanlike. Out of the batters box? running out of the baseline to avoid a tag? Leaning into a pitch to be awarded first? Throwing inside as a batter hugs the plate? Hard slide to breakup a double play? Catcher hitting a runner to first if in the line of play? Short stop creating contact fielding a ball? How about teach the short stop to pay attention and not let that happen? Unsportsmanlike conduct could many times be considered hard heads up plays.