For Your Consideration: Action Footage of Mark Appel’s Slider

As suggested by the 9.74 ERA he recorded over 44 innings in the California League this season — or even his most recent start in the Arizona Fall League, during which he conceded six runs over 4.0 innings — Houston right-hander Mark Appel’s professional career hasn’t been entirely free of difficulties. That he continues to exhibit promise, however, is still very much the case. And that he’s capable still of throwing a slider with what is known alternatively as “two plane break” and “furious pleasure” — that he’s capable of doing so is made evident by the footage above, of Appel throwing that same breaking pitch to Washington catcher prospect Spencer Kieboom in a different AFL game currently underway and available by way of MLB.com.





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Spencer Jones
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Member
Spencer Jones

80 grade name right there.

Mark Appel, what a great name.

Steven
Guest
Steven

Clearly someone needs to read Kiley McDaniel’s piece on the scouting scale explained again. Mark Appel is clearly only a 60 name with a 65 FV because he could change his middle name to “Banknotes.”

Steve
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Steve

I think the joke was on Kieboom there.

Stev
Guest
Stev

There was no joke.

Steven
Guest
Steven

D’oh! I guess the joke is on me.