McCullers' first appearance in the Grapefruit League was brief but encouraging. He was able to throw his sinker and a 93.2‑mph four‑seamer, a feat he couldn't achieve last year when his fastball never exceeded 91 mph.
The improvement comes after a season where he struggled with command and relied heavily on his knuckle curve and slider. With better velocity and control, McCullers may earn a spot in Houston's rotation or bullpen, sparking hope among Astros fans.