The Colorado Rockies promoted pitching prospect Eddie Butler to Double-A Tulsa on Friday, according to a source within the organization. Butler will make his first start at the level on either Tuesday or Wednesday, if Tulsa keeps its current rotation schedule intact.
Butler, 22, has been dominant in two minor league stops this year. He pitched five shutout innings in each of his last three starts at High-A Modesto and has allowed one earned run or less in seven of his last 10 outings. Butler began to garner national attention after a dominant inning in the All-Star Futures Game in July, during which he pitched a scoreless inning and struck out Boston Red Sox top prospect Xander Bogaerts with a pitch that was profiled by Fangraphs' Carson Cistulli.
Rockies first-round draft pick Jonathan Gray will take Butler's spot in Modesto's rotation, while Butler is set to take over for Chad Bettis, who was roughed up in his big-league debut on Thursday, in Tulsa.
Butler posted a 2.39 ERA/3.58 FIP with 67 strikeouts and 21 walks in 67 innings for Modesto after putting up a 1.66 ERA/3.35 FIP in nine starts for Class-A Asheville.