The Orioles filled one of the two openings on their 40-man roster this afternoon by claiming right-hander Elvin Rodríguez on waivers from the Brewers and optioning him to Triple-A Norfolk.

Rodríguez, 27, registered an 8.68 ERA and 1.607 WHIP in six games (two starts). He allowed 18 runs and 23 hits with seven walks, 17 strikeouts and seven home runs surrendered over 18 2/3 innings.

He also made seven appearances (five starts) with the Tigers in 2022, posting a 10.62 ERA and 1.921 WHIP in 29 2/3 innings, and registered one scoreless and hitless relief appearance covering 3 1/3 innings with the Rays in 2023. He retired all 10 batters.

Rodríguez never faced the Orioles in parts of his three major league seasons.

The Brewers designated Rodríguez for assignment last Wednesday after he signed a split contract with them in January. He had a 4.25 ERA and 1.247 WHIP in 16 games (two starts) with Triple-A Nashville.

Rodríguez pitched in the Japan Central League and Eastern League in 2024 and posted a combined 1.74 ERA and 1.102 WHIP in 49 relief appearances.

The 40-man roster has 39 players.

* The undrafted free agent signing period is underway and the Orioles reached agreement with Murray State right-hander Isaac Silva.

Silva, 22, transferred from Troy University and went 9-3 with a 4.84 ERA and 1.374 WHIP in 18 games (16 starts).

Various trackers also have the Orioles signing Augustana right-hander JD Hennen and Shoemaker (Texas) High School second baseman Joephilip Guzman.