It will come as no surprise to anybody who has ever played the game but stepping into the batter's box and making contact with a baseball is hard.

Now, imagine the challenge of having this happen three times in a single inning, with a fourth batter then knocking the ball out of the park.

What are the odds of that happening?

In Major League Baseball, the odds of recording a grand slam are roughly once every 18 games or once every 324 innings.

However, when the question of whether the deed can be done twice in a single inning is asked, these odds become microscopic.

Why? Well, it's a feat that has only ever been achieved once in the storied history of Major League Baseball.

Today, fans are more than aware of Fernando Tatís Jr and his five-tool skill set, with the Padres star electrifying baseball watchers across the globe in the field and at the dish.

Still, more seasoned watchers will also be aware of the deeds of his dad, Fernando Tatís Sr.

Across the course of his 14-season career in the bigs, the Dominican native represented five ballclubs and accrued a lifetime batting average of .265, with 113 homers and 443 runs batted in.

However, his greatest moment came at Dodger Stadium on April 23, 1999, when he cleared the bases twice in one inning after taking Chan Ho Park deep twice for eight RBIs.

Tatís Sr's first long bomb in the Chavez Ravine air came with no outs on the board after Park had given up two singles and hit a batter.

His second blast arose after several fielder's choices and a rattled Park issued several walks.

While a wild achievement that is yet to be replicated, perhaps the most impressive element of Tatís Sr's crowning achievement is that he did all of this hitting behind a juiced-up Mark McGwire.