March 8, 2025

Seattle Mariners starting pitcher George Kirby (shoulder) was an All-Star in 2023, yet despite not earning an appearance in 2024's Midsummer Classic, his final numbers were virtually the same as the year before. After going 13-10 with a 3.35 ERA, 1.04 WHIP, 20.2% K-BB%, and opponent BA of .245 over 190 2/3 IP in '23, the righty went 14-11 with a 3.53 ERA, 1.07 WHIP, 20.1% K-BB%, and an opponent BA of .242 over 191 IP in '24. Consistent, projectable numbers are an appealing fantasy attribute. Kirby looks set to at least come close to repeating those numbers in 2025 with a SIERA on par with his ERA and a markedly lower FIP (3.26). As a word of caution, though, his 20.1% K-BB% is somewhat misleading due to elite command. The 26-year-old had a 99th-percentile walk rate (3.0%) but only a 50th-percentile strikeout rate (23.0%), translating to an 8.43 K/9. While Kirby is a solid fantasy rotation piece, his teammate Bryce Miller finished higher for fantasy in 2024, offers better strikeout ratios, and can be had much later at pick 79. Nevertheless, Kirby is ranked 40 overall at RotoBaller, similar to his NFBC ADP of 39. Update 3/7/25: Kirby was shut down from throwing due to right shoulder inflammation and is expected to start the season on the injured list. He underwent an MRI, which showed no structural damage on his injured shoulder, but it's unclear when he will resume throwing again. With the latest news, Kirby's ranking at RotoBaller has dropped from 39 to 100 overall, putting him in the same tier as Tyler Glasnow. Fantasy managers should continue to monitor the situation.--Jarod Rupp - RotoBaller