Boston Red Sox sign Garrett Whitlock to four-year extension; source says reliever guaranteed nearly $19 million

The Boston Red Sox have signed right-handed reliever Garrett Whitlock to a four-year contract extension, the team announced Sunday.

Whitlock is guaranteed a total of $18.75 million from 2023 to 2026, a source told ESPN. The deal also includes club options for the 2027 and 2028 seasons, with the source saying Whitlock would earn $8.25 million in 2027 and $10.5 million in 2028 if the options are successful. The Red Sox could pay a $1 million buyout before 2027 or a $500,000 buyout before 2028, the source said.

After breaking into the majors with the Red Sox last season, Whitlock will remain eligible for Major League Baseball’s pre-offer bonus pool. He could earn bonuses based on innings pitched, awards and whether he serves as a starting pitcher or reliever, earning up to $44.5 million over the life of the contract, the source said.

The 25-year-old is expected to earn $700,000 this season.

Whitlock played 46 games for the Red Sox in his rookie season, going 8-4 with a 1.96 ERA and recording two saves. He pitched 2 1/3 innings in his 2022 debut on Friday, allowing a home run in a missed save in Boston’s 6-5 overtime loss to the New York Yankees.

Among 30 rookies who pitched at least 70 innings last year, Whitlock ranked first in ERA, second in WHIP at 1.10 and third in opposing OPS at .631.

He started his pro career with the Yankees organization before undergoing Tommy John surgery in 2019 and being selected by the Red Sox in the 2020 Rule 5 Draft.

The Associated Press contributed to this report.

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