George Kirby, Mariners' pitching have promising future
Seattle Mariners call up top pitching prospect George Kirby
Mariners Top 50 Prospects: No. 4 — George Kirby, RHP
Mariners vs. Angels Probable Starting Pitching - August 5
MORE
George Kirby's Looking Like the Future Ace of the Mariners
Mariners prospect George Kirby has arrived in Seattle. Here's what
George Kirby continues to impress on limited pitch count, lifting
Just the start': After tough loss ends season, Mariners excited
George Kirby, Mariners' pitching have promising future
George Kirby, Mariners' pitching have promising future
Young pitchers Logan Gilbert, George Kirby are anchors for Seattle
Mariners catch glimpse of pitching future in George Kirby, Matt
Mariners top pitching prospect George Kirby has more than just a
Mariners put faith in rookie George Kirby with season on line vs. Astros