Reds right-hander likely to miss start of season due to shoulder issue

Reds right-hander Justin Dunn experienced some shoulder discomfort late in the offseason, writes Bobby Nightengale of the Cincinnati Enquirer. While Dunn threw a brief bullpen session last week, he hasn’t returned to a mound since then.

There’s no indication Dunn is battling anything serious. Nevertheless, Nightengale writes that it’s “increasingly likely” he could be delayed by the start of the regular season with his throwing program behind schedule. If he ends up missing time during the season, it’d be the second straight year in which shoulder issues have posed a problem.

Acquired from the Mariners last spring training as part of the major trade that sent Jesse Winker and Eugenio Suárez to the Pacific Northwest, Dunn opened his first season as a Red on the injured list. He didn’t return until early in the season’s second half. The Boston College product started seven games with Cincinnati, struggling to a 6.10 ERA with just a 15.2% strikeout rate and elevated 12.3% walk percentage over 31 innings. He also had a tough time over eight starts with Triple-A Louisville, posting a 6.21 ERA in eight starts there.

That’s a season that the former first-round pick would prefer to put in the rearview mirror. Dunn understandably expressed some frustration with his recent shoulder problem, telling reporters he’d felt strong throughout the bulk of his offseason activity.

It’s a key season for the 27-year-old, who’s looking to stake a claim toward the back of an uncertain rotation. The Reds have Hunter Greene, Nick Lodolo and Graham Ashcraft in the top three starting spots. Free-agent acquisition Luke Weaver seems to have the inside track on the No. 4 job. There are a few pitchers who could find themselves in the mix for the fifth spot. Former reliever Luis Cessa, journeyman righty Connor Overton and prospects Brandon Williamson and Levi Stoudt could make some starts for the club. Dunn could certainly battle for a job himself, though he’ll first need to get his shoulder back to full strength.

Dunn has started 32 MLB games dating back to 2019. He owns a 4.44 ERA with subpar strikeout and walk rates (19.3% and 14.7%, respectively) in 133 2/3 career innings. Dunn is making $900K for the upcoming season and is eligible for arbitration through the 2025 campaign.