Ventura, 22, was throwing only 91 mph in his final at-bat of the night before leaving with the trainer, according to Andy McCullough of the Kansas City Star. Ventura came into the game with an average fastball velocity of 96.1 mph according to PitchFX, which is among the highest in baseball.
In nine starts and 54 2/3 innings this year, Ventura has gone 2-4 with a 2.80 ERA and a 3.50 K/BB. The Astros roughed him up for five runs on seven hits and three walks in 2 2/3 innings on Monday. He threw 78 pitches in under three innings of work.
Given the rash of Tommy John surgeries in recent weeks, it's hard not to assume the worst. Hopefully Ventura is fine and baseball will not lose another one of its top young arms to the zipper.