What is the hardest play in baseball?

There are many difficult plays in baseball, but one that is commonly considered to be the hardest is the unassisted triple play. This occurs when a fielder makes three consecutive putouts without any assistance from another fielder, usually by catching a line drive or popup, stepping on a base for the second out, and then throwing to first base for the third out. It is a very rare occurrence, and only a few players have ever accomplished it more than once in their careers.