In a group of players being exposed to waivers to clear them from the 40-man roster, the Phillies lost 26-year old reliever Yacksel Rios to the Pittsburgh Pirates on a waiver claim.
Rios, along with Dylan Cozens and Mitch Walding, were all designated for assignment to open up spots for newly acquired players on the 40-man roster. Rios was claimed, Cozens wound up being released by the Phillies and Walding cleared waivers and was outrighted to Lehigh Valley.
Rios made 56 relief appearances for the Phillies over three seasons, posting a 6.38 ERA, while averaging exactly one strikeout per inning in the majors. His undoing came with 4.4 walks per nine innings and an average of two home runs per nine innings pitched as a major leaguer.
The Pirates bullpen has struggled this season, posting a 4.77 ERA as a staff. Pirates starters have posted a 5.23 ERA on the season.
Cozens, 25, made his MLB debut last season and played in 26 games with a slash line of 1-2-.158/.273/.289. He played in one game with the Phillies this season, going 0-for-1. With Triple-A Lehigh Valley, he played in 23 games this season before suffering a foot injury that required surgery, putting Cozens on the IL possibly for the season.
The 26-year old Walding also made his MLB debut last season, playing in 13 games and striking out in 12 of 17 at-bats, with one hit. He struck out in two at-bats this season with the Phillies and is batting just 11-40-.206/.351/.369 with 133 strikeouts in 90 games at Triple-A Lehigh Valley.