Rockies calling up prospect Jon Gray for his MLB debut


Rockies pitching prospect and No. 3 overall pick in the 2013 draft Jon Gray is headed to the big leagues and will make his MLB debut Tuesday against the Mariners.

Gray starred at the University of Oklahoma and was selected after Mark Appel went to the Astros and Kris Bryant went to the Cubs. And he beats Appel to the majors, arriving at age 23 despite relatively underwhelming numbers in the minors.

Gray started 20 games at Triple-A this season with a 4.33 ERA and 110/41 K/BB ratio in 114 innings. In fairness Albuquerque of the Pacific Coast League is a very tough environment for pitchers, but Gray also posted a 3.91 ERA and 113/41 K/BB ratio in 124 innings at Double-A last season.

His raw stuff is a lot more impressive than his performance thus far and it’s worth noting that Gray has pitched very well of late with a 2.90 ERA and 82 strikeouts in his last 80 innings. He’s considered one of the best pitching prospects in baseball.