The Rangers will break camp with Rule 5 right-hander Carter Baumler on the roster. In a unique moment that all fans will want to check out (video link), manager Skip Schumaker made a mound visit last night to inform Baumler he’d made the club mid-game. The entire Rangers infield converged to join in for the delivery and congratulate the 24-year-old on his first call to the big leagues. After his outing, an emotional Baumler told Laura Stickells of the Rangers Sports Network that he was blindsided by the news (video link). Naturally, when Baumler saw Schumaker heading to the mound, he assumed he was being taken out of the game earlier than expected.
“What a special way [to tell me],” Baumler said. “It caught me totally off guard. It was pretty cool. … A few years ago, I never would’ve expected this. Looking back, I’m glad I kept my head down, kept hammering away.”
A fifth-round pick by the Orioles back in the shortened 2020 draft, Baumler signed for an over-slot $1.5MM but has never been touted as a top-tier prospect. That’s in part due to persistent health troubles. He’s already undergone both Tommy John surgery and shoulder surgery in his young career. Between those injuries and the lack of a minor league season in 2020, Baumler pitched only 49 total innings in his first five seasons of pro ball.
In 2025, Baumler tossed 39 2/3 frames between High-A and Double-A. That’s still the highest single-season workload of his career, so the Rangers will be at least somewhat judicious with his usage — even in a bullpen role. Baumler worked to a sparkling 2.o4 ERA with a 29.1% strikeout rate but an 11.4% walk rate last year. He’s been outstanding with Texas this spring, tossing 9 1/3 shutout innings with a 28.6% strikeout rate, a 5.7% walk rate and a 54.5% ground-ball rate.
In order to shed his Rule 5 designation — which prevents him from being optioned to the minors at any point — Baumler will need to stick on the major league roster or injured list all season (including 90 days on the active roster). If he manages to do so, the Rangers will secure full control over the right-hander moving forward. He’d be controllable for five years and have a full slate of three minor league option years thereafter.
If at any point Texas feels the need to go in a different direction, Baumler would need to pass through waivers unclaimed and subsequently be offered back to the Orioles for a nominal sum of $50K. Given the excellent spring results and the fact that the Rangers actually sent a prospect to the Pirates in order to select Baumler for them in the draft, he should have a real chance to stick on the roster.
Baumler will join a revamped Texas bullpen that includes lefties Robert Garcia, Tyler Alexander, Jalen Beeks and Jacob Latz as well as right-handers Chris Martin, Cole Winn and Jakob Junis.

It was one of the coolest things seeing that mound visit where he was told he made the team! Congrats to him!
That’s a cool moment 👍
They can also pay to retain his rights if I’m not mistaken
If he gets run through waivers, he either clears waivers, or he doesn’t. If he doesn’t, the claiming team has the same stipulations.
If unclaimed, Baltimore could…
A. Buy him back at half price.
B. Let Texas keep him.
C. Execute a trade with Texas to allow Texas to keep him.
Given how good Baumler has been, the Rangers probably won’t get rid of him until he has a bad stretch of games.
He deserves it. He had a killer Spring Training with 9 innings pitched and no earned runs allowed (He had 1 unearned). Nice K rate, kept the walks low, and allowed few hits and plenty groundballs.
That’s awesome, I don’t know how he contained himself enough to throw another pitch right after that.