Jack Flaherty tied an American League record with seven straight strikeouts to open a game and struck out a career-high 14 before the St. Louis Cardinals rallied against a usually reliable bullpen with a two-run ninth inning to beat the Detroit Tigers 2-1 in a doubleheader opener Tuesday.

Pitching against his first big league team, Flaherty kept the Cardinals off balance and flailing at four-seam fastballs and knuckle-curveballs.

Riley Green hit a fourth-inning home run off Kyle Gibson.

Nolan Arenado, Paul Goldschmidt and Alec Burleson had one-out singles in the ninth, with Burleson's driving in the tying run off Shelby Miller (3-3). Pedro Pages followed with a go-ahead sacrifice fly.

Matthew Liberatore (1-1) struck out two in a 1-2-3 eighth, and Ryan Helsley fanned two in a perfect ninth for his 10th save in as many chances.

Gibson, though, made the comeback possible by holding Detroit to one run on four hits over seven innings.

Wenceel Pérez hit homers from both sides of the plate, including a tiebreaking blast in the fifth inning, to help the Detroit Tigers beat the St. Louis Cardinals 11-6 Tuesday night to split a doubleheader.

The Tigers went ahead again in the second game and pulled away with a four-run seventh.

Perez hit a right-handed, opposite-field solo shot in the second inning off Steven Matz and a left-handed, two-run homer against Ryan Fernandez to put Detroit ahead 7-5.

The 24-year-old Dominican became the first rookie to clear the fences for the franchise hitting right and left-handed in the same game since Raúl Casanova in 1996, and the first Tiger with any level of experience to do it since Victor Martinez in 2018.

Perez hit a homer for the first time in the majors on Sunday in his 16th game.

Cardinals RHP Miles Mikolas (2-3, 5.91 ERA) and Tigers RHP Kenta Maeda (0-1, 5.96) are scheduled to pitch in the series finale on Wednesday afternoon.