Red Sox Suddenly Face Another Bullpen Decision With Zack Kelly

Zack Kelly, recovering from an elbow fracture, enters free agency with potential suitors likely eyeing his powerful pitch arsenal despite his uncertain return timeline.

Zack Kelly’s run with the Red Sox took another turn Wednesday, as the right-hander cleared outright waivers after his recent DFA and is now set to become a free agent, according to Chris Cotillo of MassLive.com.

Kelly, who turns 32 next March, has put together a respectable major league résumé despite going undrafted. He was effective in a limited sample for Boston this season before a fracture in his right elbow shut him down. In 16 1/3 innings, he posted a 3.31 ERA with a 19.7% strikeout rate and a 9.9% walk rate.

Since making his big league debut in 2022, Kelly has logged 131 innings in the majors with a 4.04 earned run average, a 22.4% strikeout rate, a 10.2% walk rate and a 45.4% ground-ball rate.

His arsenal has also evolved along the way. Kelly works with a four-seamer and sinker that both sit around 96 mph, and the sinker is a pitch he only started using in 2025. He once leaned on a changeup as his main secondary offering, but more recently he’s increased the use of a 90-91 mph cutter and paired it with an 81 mph slider.

The timeline on his recovery still isn’t fully clear. He was first placed on the injured list in late July with what was initially described as elbow inflammation, but later testing revealed the fracture that ended his season.

Because he has more than three years of major league service, Kelly can now become a free agent. If he lands with another club and gets back onto a major league roster, he’ll be controllable for at least three more years. He’s also out of minor league options, so any team that adds him will need to keep him in the majors or risk another DFA.

Given that he cleared waivers, the likeliest next step is a minor league deal, either with Boston or elsewhere. That route would also let Kelly stay in touch with his team during the looming lockout, since players on 40-man rosters won’t be able to communicate with their clubs or play in games until a new collective bargaining agreement is reached.

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