ST. LOUIS — Eager anticipation will soon turn into reality for Rockies baseball fans.
Right-handed starting pitcher Jon Gray, the top prospect in the Rockies organization, is scheduled to make his major-league debut on Tuesday night against the Seattle Mariners at Coors Field.
A major-league source confirmed the news late Sunday night.
Gray, 23, the No. 3 overall pick out of the University of Oklahoma in 2013, has been pitching this season for Triple-A Albuquerque. He is 6-6 with a 4.33 ERA in 21 games (20 starts). He's struck out 110 vs. only 41 walks.
Fans have been waiting for Gray's debut all season, but the Rockies were waiting until Gray reduced his pitch counts and improved the command of his fastball, slider and changeup.