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For some reason, there's no profile for Carlos Martinez in SBN's databases, even though he's actually pitched in several MLB games this year. I can get you one for John Gast, but not Carlos Martinez.
Anyway, Carlos is short (for a pitcher), young, very talented, strikes a lot of dudes out, and gets a surprising number of groundballs. As an MLB reliever, he has struck out 22% of the batters he has faced in 11 innings pitched, while only walking 8% of them. He has a 5.56 ERA, but only a 2.68 FIP and 3.42 xFIP. As a minor leaguer, he has struck out 21% of the batters faced and walked 10% of them, in 10 starts at Memphis over 51 innings. He has a 1.76 ERA at Memphis and a 3.16 FIP.