Drafted in the 28th round (842nd overall) by the Houston Astros in 2008 (signed for $100,000).
Top Rankings
Organization Prospect Rankings
The Astros have focused on high school pitchers in the last three drafts, and lefty Dallas Keuchel is the only college pitcher in the Top 30. While Jordan Lyles, Mike Foltynewicz and Tanner Bushue exemplify what the Astros are looking for--lean, athletic, projectable prep arms--Grimmett is in the next tier. He made a strong move in 2010, dominating in the first half as a reliever in low Class A before some uneven performances in eight starts down the stretch. Grimmett was headed to Connors State (Okla.) JC with his twin brother Nick, who has since moved on to Arkansas-Little Rock, when the Astros signed him away for a $100,000 bonus. They have found themselves a power arm, as Grimmett's fastball sits at 90-92 mph when he starts and bumps 93-94 repeatedly when he relieves. He throws both a curveball and a slider. His curve is soft, and some scouts consider his slider his best pitch. He throws it with tight rotation and power in the low 80s, has a knack for throwing it for strikes and uses it to neutralize righthanders. Grimmett's changeup has shown flashes but lags behind, and he needs a weapon to give lefthanders something to worry about. His overall command is below average, and he hasn't refined his mechanics enough to earn the label "strike-thrower" yet. If his change comes around, he'll return to a starting role in high Class A this year. He had a strong instructional league in longer three- and fourinning stints, so the Astros are optimistic he can hold down a rotation spot for at least another year.
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