The Boston Red Sox are already at the bottom of arguably the toughest division in MLB with a 1-5 record. While it is early, it’s still significant in a tough American League East division.
Their attempt to get back to the top of the division will be slowed by an ominous injury to their pitching staff.
In a flurry of roster moves made Friday morning, the Red Sox placed right-hander Johan Oviedo on the 15-day IL with a right elbow strain.
In a corresponding move, Boston called up right-hander Tyler Uberstine for his major league debut.
The Red Sox also placed right-hander Garrett Whitlock on the paternity list, where he can spend a maximum of three days, and recalled right-hander Zack Kelly.
Whitlock has not given up an earned run in three innings of work in 2026 and is one of the team’s best relievers.
Kelly has a career 4.15 ERA in 98 games.
What Does the Oviedo Injury Mean for the Boston Red Sox?
Obviously, an elbow injury of any kind is worrisome for a pitcher. When coupled with a decline in velocity, it makes the situation a lot worse.
The St. Louis Cardinals signed Oviedo out of Cuba back in 2016. He would make his major league debut for the team during the COVID-shortened 2020 season.
He struggled to a 4.65 ERA in 33 games (112.1 innings) before the Cardinals traded Oviedo to the Pittsburgh Pirates in exchange for Jose Quintana and Chris Stratton.
Oviedo would start just 48 games from 2022 to 2025 for Pittsburgh with a 4.05 ERA. After the 2023 season, Oviedo would undergo Tommy John surgery. This sidelined him for the entire 2024 season and most of 2025.
After the 2025 season, the Pirates would trade Oviedo to Boston in exchange for outfield prospect Jhostynxon Garcia.
In one game in 2026, Oviedo pitched 3.2 innings of relief, with four earned runs given up, including two home runs. While not expected to start for Boston, he provided rotation depth and length out of the bullpen.
The Red Sox will have to hope that Oviedo’s injury is not as significant as currently thought.
Who Is Tyler Uberstine?
As mentioned before, Uberstine will be making his major league debut with the Red Sox.
Uberstine is currently the No. 15 prospect in the Boston farm system, per MLB Pipeline, and carries an interesting story.
He was cut by the University of Southern California’s club team as a freshman and the varsity team as a sophomore.
Uberstine then started working with former big leaguer Joe Biemel and transferred to Northwestern, where he would also struggle.
Boston saw enough, however, to select him in the 19th round of 2021’s draft. However, he would blow out his elbow during spring training in 2023, causing him to miss the better part of two seasons.
Uberstine would come back better than ever, posting a 3.58 ERA in 2025 between Double-A and Triple-A. Now, Uberstine will make his dream a reality, overcoming the obstacles he faced.
However, it could come at the expense of Oviedo.
Red Sox Receive Ominous Injury News On Johan Oviedo