The New York Yankees took the baseball world by storm when they debuted their new "torpedo bats," but one slugger doesn't use them.

Many of the Yankees used torpedo bats while posting historic numbers this weekend. Here's how the team started using the oddly-shaped bats and why they're legal.

While Aaron Judge rocked three homers using his normal bat, a number of Yankees opted for the Torpedo bat, which was designed in part by former Massachusetts Institute of Technology physicist Aaron Leanhardt and are notable for being densest at the barrel, or the "sweet spot" of the bat.