Hidden Ball Trick Baseball
The hidden ball trick in baseball is a deception play where a fielder pretends he does not have the ball, secretly retaining it to tag a base runner out. Sometimes, in order to pick runners off, infielders will deceive runners. They will pretend that they do not have the baseball, by hiding it, pretending to throw it, etc. Then quickly tag the oblivious runner off when he steps off the base. This is a pretty rare feat, and not something that is commonly practiced.