They say that baseball is a young man’s game.

The constant running, training and wear-and-tear placed on a man’s body can be grueling. Over the years, it can cause even the healthiest of men to break down. 

Every so often, there are those players that defy that logic. Some may call it luck, while others consider it good genes; at the end of the day, however, it all boils down to the love of the game.

To take a look at MLB History, there have been numerous players who have managed to stay in the game through their late 30s. At that point, the numbers drop off.

The purpose of this list is to look at those players to managed to play at a high, or fairly high, level after reaching the age of 40.

More so, if they were a position player, they must have put in over 100 games of work. If they’re a pitcher, they must have 100 innings pitched under their belt.

With those caveats in mind, here is a look at the 20 greatest “old guys” in MLB history.

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