Development never sleeps: Meet the new version of Tigers' Beau Brieske

CLEVELAND — When you hear talk about player development, you automatically think it's about the younger players, prospects rising through the system, rookies trying to get acclimated to the big leagues.

But development has no age limit, it never stops. And Tigers reliever Beau Brieske is living proof.

Brieske is 28 and has played in parts of five seasons with the Tigers. He's had to reinvent himself a couple times. First, he transitioned from starter to reliever. Then he had to adjust his arsenal again after battling nerve issues in his arm. Now comes another stage of evolution.

He's come back to the Tigers this month with a new weapon. He's brought back a curveball from his stint at Triple-A Toledo, something he abandoned when he transitioned to reliever.

"I wanted something that moves straight down to try to help out with the fastball," he said.

Brieske recently has relied on his power four-seam fastball with changeups that move away from left-handed hitters and sliders that move away from right-handed hitters. Everything he threw was moving east to west.

"Those can be good pitches," he said. "But I think if I'm only doing that, it allows for guys to maybe zone things a little easier. Like, if they pick one (either the fastball or the secondary), they can fight the other off. That's what I was seeing."

Brieske at times struggled to put hitters away for that reason and at-bats would grow long. His strikeout rate in 2024, when he was at peak performance and pitching in leverage situations down the stretch and into the playoffs, was 9.2 per nine innings. It was 6.5 in 2025 and 7.6 in a short sample this year.

"I thought if I could get something that goes down, it would give the hitter another thought, another visual, they have to cover," Brieske said. "Hopefully, in my mind, they would have four different shapes to deal with."

The second benefit to the curveball, it gives Brieske more of an off-speed pitch in his arsenal. His changeup and slider both average around 89 mph. He wants the curveball is spin up there at 85 mph.

"Just having that fourth speed," he said. "It's something I can use to play the front to back game, as well."

The front-to-back game means mixing velocities to get hitters either late on heaters or out in front of the spin and off-speed.

Brieske last thew a curveball in 2022 and it was a 78-mph beauty. Hitters were 3-for-19 against it that year. His changeup was also a slow pitch, 82 mph, with good fading action. What he wouldn't give.

"Yeah, prior to the arm injuries," he said. "It was a really slow, pronated changeup. But the nerve stuff threw a wrench into my ability to throw that. I haven't been able to get the speed differential since. But, like, I can't dwell on it. Let's just adjust."

He is using a slightly modified version of the grip he used for the curveball in 2022.

"I started with the old grip," he said. "But, typical pitch development, I was like, 'Ah, I don't love it,' and you try things, different thumb positions and stuff. I arrived at a slightly adjusted grip from the original, but with the same seam orientation."

He threw the curveball seven times against the Twins on Sept. 1, six of them to right-handed hitters. Probably because of adrenaline, he was throwing it a little firmer than he wants (86.6 mph).

None were put in play and he got one whiff on two swings.

"I just have to be smart about it," he said. "When you start throwing a different pitch, you have to properly ramp it up. You get a new pitch you want to throw it a lot and, all of a sudden, it's like, wow, this (forearm) feels a little tight."

This is a big month for Brieske. Not that he's thinking about it in these terms. His goal is to show the best version of himself and help the Tigers win games. But the reality is, he is in his second year of arbitration. And as such, he is vulnerable to being non-tendered.

Weird to say about a guy with 123 games under his belt including six in the postseason, but this next stretch is almost an audition for Brieske.

➤ First pitch: 6:10, Progressive Field, Cleveland

➤ LHP Framber Valdez (8-10, 4.36), Tigers: Guardians hitters, in two previous starts against Valdez, worked nine walks. They make him come into the zone and they have done damage when he has (eight runs in 10.2 innings). Valdez is coming off a strong start against the Dodgers in which he established his sinker early and got eight groundball outs in what ended up being a quality start, albeit in a 6-1 loss.

➤ LHP Parker Messick (11-8, 2.46), Guardians: The Tigers didn't do much against him at Comerica Park on Aug. 13, two runs and three hits, but just enough to beat him. They forced him to throw 102 in 5.2 innings with Eduardo Valencia ending his day with a homer. Messick hasn't allowed more than a run in his last three starts, though. He's a fastball bully. His 94-mph four-seamer has a plus-26 run value (Statcast), holding hitters to a .159 average, .250 slugging with a 32.7% strikeout rate.