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Rocker is one of the most well-known prep names in the 2018 high school class thanks to exceptional stuff--headlined by a fastball that routinely reaches 98 mph--and a physically imposing 6-foot-4, 240-pound frame. Despite his big build, Rocker is athletic for his size and has the bloodlines to back it up, as his father, Tracy, played football at Auburn before a brief NFL career with the Washington Redskins. When it comes to pure stuff, there's perhaps no pitcher in the high school class who can match Rocker pitch for pitch. His fastball is regularly in the low to mid-90s and reaches the upper levels when he needs it. The pitch is delivered with such ease that is sometimes looks like he's just playing catch. After that, Rocker has a pair of secondary offerings that have both looked plus, with a power breaking ball--some scouts call it a curve and some dub it a slider--that's hard and tight in the low to mid-80s with late-breaking action. Rocker's changeup is firm and has been up to 91 mph this spring, with fading action that allows the pitch to fall off the table at its best. Just grading out the tools, Rocker should be the top high school player in the class, but he got hit around more than his stuff would indicate last summer, especially when his fastball flattened out and stayed up in the zone. Some evaluators wonder if he just lacks deception and whether adding a two-seam fastball with more movement would help him down the road. The reports from his spring season with North Oconee High in Bogart, Ga., have all been exceptional and while he did deal with a minor hamstring injury that pushed back one of his starts, Rocker has done everything evaluators wanted him to do. Moving forward, the Vanderbilt commit needs to be on top of managing his weight as a bigger-bodied pitcher and he'll need to take steps forward with the command of his entire repertoire once he gets to levels where his stuff alone isn't overwhelming. Overall, Rocker has the elements to be a future front-of-the-rotation arm and should be a first-round pick.