The bats were developed by former Yankees staffer and MIT physicist Aaron Leanhardt, who designed them to shift mass closer to the hitter’s hands for better control and improved barrel consistency. Major League Baseball has approved the bats and players on other teams are already using them.

The 15 home runs the Yankees tallied across their first three games drew attention around the sport with a focus on their bats that sport a torpedo-shaped barrel. But the new-look bats have also sparked some outrage — particularly from Bartstool Sports’ Dave Portnoy,