Jay Biggerstaff-USA TODAY Sports

Boston Red Sox right-hander Lucas Giolito could miss the entire 2024 season after initial imaging revealed a partially torn UCL and flexor strain in his pitching elbow, ESPN reported on Tuesday.

If Giolito requires surgery as opposed to extensive rehab, he's likely to miss up to 10 months.

The news would be a potentially significant blow to the Red Sox, who signed the former Chicago White Sox ace to address their starting pitching depth. He signed a a two-year contract worth $38.5 million.

Giolito, 29, became a free agent after spending time with three clubs during 2023.

Giolito produced a cumulative 8-15 record with a 4.88 ERA in 33 total starts last season with the White Sox, Los Angeles Angels and Cleveland Guardians. He allowed 41 home runs, the second-highest total in the majors, but struck out 204 batters over 184 1/3 innings.

Giolito was an All-Star in 2019 and received American League Cy Young Award votes in three straight seasons (2019-21). Across eight MLB seasons with the Washington Nationals (2016), White Sox (2017-23), Angels and Guardians, Giolito is 61-62 with a 4.43 ERA and 1,077 strikeouts over 1,013 2/3 innings of 180 appearances (178 starts).

While with the White Sox, Giolito tossed a no-hitter in 2020 against the Pittsburgh Pirates.

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