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.

The torpedo bats drew attention on Saturday when YES Network broadcaster Michael Kay said on the telecast of the Yankees' home game against the Milwaukee Brewers the team had new bats made that "moved a lot of the wood into the label so the harder part of the bat is going to strike the ball."

The bats shaped like bowling pins at the end have baseball buzzing after they were used by Yankees players who contributed to a barrage of 15 home runs in the first three games.