The Tampa Bay Rays have selected LHP Joe Rock and LHP Ian Seymour to the 40-man roster. To make room on the 40-man roster, INF Austin Shenton has been designated for assignment.

Rock, 24, was acquired from the Rockies on March 21 in exchange for outfielder Greg Jones. The left-hander went 7-8 with a 4.58 ERA (139.2IP, 71ER) and 132 strikeouts in 27 games (23 starts) after spending the entire 2024 season with Triple-A Durham. Rock is rated by MLB.com as the Rays No. 22 overall prospect.

Seymour, 25, was named Tampa Bay’s Minor League Pitcher of the Year after going 9-4 with a 2.35 ERA (145.1IP, 38ER), .187 opponent average (97-for-518), 0.95 WHIP and 162 strikeouts in 27 starts between Double-A Montgomery (17GS) and Triple-A Durham (10GS). He went 5-3 with a 2.36 ERA (91.1IP, 24ER) and 99 strikeouts for the Biscuits, earning Organizational Pitcher of the Month honors for both April and May after going 4-2 with a 2.35 ERA (53.2IP, 14ER) and 70 strikeouts across 10 starts. He was named Southern League Pitcher of the Week (June 3-9) after throwing 7.0 scoreless innings on June 5 at Biloxi, allowing one hit and two walks with three strikeouts.

Following a July 23 promotion to Durham, Seymour went 4-1 with a 2.23 ERA (54.0IP, 14ER) and 63 strikeouts with the Bulls. He led all Rays minor leaguers in ERA, innings, strikeouts and WHIP while ranking highly in starts (T1st), opponent average (3rd) and wins (T3rd). His 2.35 ERA was also 10th lowest among all full-season minor league pitchers. Selected in the second round of the 2020 First-Year Player Draft out of Virgina Tech, Seymour is rated the Rays No. 17 prospect by MLB.com.