Jack Flaherty and Kenta Maeda combined to allow four runs in five innings in the Detroit Tigers' 6-5 loss to the Boston Red Sox on Thursday.

Jack Flaherty talks about signing with the Tigers, where he thinks the team is and returning to Los Angeles after winning the World Series

Because Flaherty pitched until the end of October, his activation into spring games was intentionally delayed. So some rust was expected.

Jack Flaherty talks about signing with the Tigers, where he thinks the team is and returning to Dodger Stadium after winning the World Series

Detroit Tigers president of baseball operations Scott Harris talks to reporters Feb. 7, 2025, about signing right-hander Jack Flaherty in free agency.

The Detroit Tigers have at least four pitchers competing for two rotation spots. At some point, they’ll have to whittle down the competition. No one is making it easy. Tarik Skubal, Reese Olson and Jack Flaherty have secure spots in the Tigers' rotation.

Flaherty allowed one run on a hit and two walks across two innings in Thursday's Grapefruit League game against the Red Sox. He struck out two. Flaherty, who signed with Detroit on a two-year, $35 million deal earlier this month,

This is a 2025 photo of Jack Flaherty of the Detroit Tigers baseball team. This image reflects the Tigers active roster as of Wednesday, Feb. 19, 2025, when this image

The Tigers expected to enter Spring Training with four rotation spots secured. Jack Flaherty’ssurprisingly quiet market allowed Detroit to reinstall him as the #2 starter behind

Jack Flaherty talks about signing with the Tigers, where he thinks the team is and returning to Dodger Stadium after winning the World Series

A Detroit Tigers prospect has separated himself from his peers in the organization when it comes to his power potential.

Jack Flaherty talks about signing with the Tigers, where he thinks the team is and returning to Dodger Stadium after winning the World Series