You may see that the players are wearing tar or putting it on the helmet. The reason is that they think that washing them away will cause them bad luck. Some players put tar on their faces or neck because of superstition. However, they are not meant to wear tar on them. The batters often put an excess amount of tar on the helmet because they can use them on the grip in between the gameplay. Therefore, the players often have sticky and stained helmets and hands during the game.