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His EYE is only 4:22 against LHP's, so they're beating him a lot, but he has a good number of doubles and homers against them.
No doubt if he has time to think, and the ball's centered, he can turn on it.
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As you mention, he looks over his head, age-and-level. He shouldn't be 4:22 in the RH-on-LH situations.
And as y'know, Francisco Martinez is a tools scout call, not a saber call. Not much in his results for us to like, other than that he's being asked to accomplish a blue-chipper's timeline.