In baseball, inside pitching is a tactic used by pitchers.
It involves throwing a pitch close to the batter to make it more difficult to swing their bat, and result in making less solid contact, known as "jamming the hitter."
Pitchers with good control are usually more likely to pitch effectively on the inside.
When employed correctly, this can result in making a hitter hit pop flies or weak ground balls; also, rarely, it causes them to break bats.
Despite the dangers that it poses to batters, it is a common and legal tactic.