The Tigers are the fourth organization Flaherty has pitched for in his decade long MLB career. He was originally a first round pick by St. Louis, where he delivered the best season of his career in 2019, finishing fourth in Cy Young voting.

Detroit Tigers ace Jack Flaherty is entering a new chapter of his life at the start of the 2026 season. The Tigers ace shared a major life decision involving his girlfriend Katie Johnson on Thursday.

DETROIT — The Detroit Tigers hit four home runs, overcame a shaky start by Jack Flaherty and kept just head of an approaching storm to beat the St. Louis Cardinals 11-6 on Saturday afternoon at Comerica Park.

Unpacking Jack Flaherty's historic struggles, this analysis reveals unsustainable command and concerning Statcast data beyond mere bad luck.

MLB player prop bets and odds for JJ Wetherholt on Saturday, April 4, 2026, as the St. Louis Cardinals take on the Detroit Tigers.

Framber Valdez pitched six scoreless innings, Dillon Dingler blasted a two-run homer and the Detroit Tigers blanked the St. Louis Cardinals, 4-0, in their home opener on Friday afternoon.

Next up in the rotation is Jack Flaherty, who hit a rough patch in his debut against the San Diego Padres. The right-hander started strong, seeing just seven batters through the first two innings, but became flustered in the third when the Padres plated a pair. His teammates did him no favors, failing to score in the 3-0 loss.