They used to be a thing. Starters and relief pitchers both. The good ones were untouchable..........even gave their catchers fits trying to catch them.

But don't hear much about them these days. Or junk ballers either for that matter.

It appears Matt Waldron is the only one in MLB right now.

They’ve become somewhat more common the last couple years. By somewhat more common, I mean you hear them mention one rarely. But not long ago it was a pitch only referenced in years past. I see them quite a bit in school ball. Not good ones, but they’re still tough to hit.

Trevor Megill throws a knuckle curve.

Does anyone throw submarine style anymore? That one that I remember in years past.

There are quite a few pitchers that throw a knuckle-curve.

There are a few. Many players have some version of a knuckle ball in their arsenal. You see position players throw them a lot when they pitch in blow out games.

My boys Paul and Mathew would always though wild pitchs ....

Most inside to scare the batter, thinking he would be hit.
Then strike them out......Head Games.....

Not many true knuckle ball pitchers in thee MLB these days, but many pitchers are throwing knuckle curves and there are a few more each year that work on developing that pitch. The fact that the ball rotates differently and also breaks considerably makes the pitch hard to make solid contact on, even if the velocity is not what many other pitches are at.

Bryce

Remember the Niekro brothers. ?? Never knew where those pitches were going. !!


And the goofy side arm thing—- Kent Tekulvey rings a bell

Catchers used an oversized mitt to catch a really good knuckle baller. Hoyt Wilhelm was one of the best knuckle ballers that I remember. His speed wasn't much over 60, but the ball was all over the place. That's why most catchers didn't like to catch him.

Wilbur Wood pitched both games of a doubleheader.