Slaten (2-1) was tagged with Tuesday's loss, allowing two runs on two hits and one walk while striking out one in a 4-2 loss to Atlanta.

Slaten (2-0) earned the win over the Cubs on Saturday, striking out two over two scoreless innings.

Slaten earned his third hold of the season, allowing one run on two hits while striking out one over 2.2 innings in Sunday's 5-4 win over the Angels.

Slaten allowed one walk and struck out one over two scoreless innings in Thursday's 9-4 extra-inning loss to Baltimore.

Slaten struck out one batter over 2.1 perfect frames and earned a save over the Mariners on Sunday.

The Red Sox informed Slaten on Sunday that he's made the Opening Day roster, Rob Bradford of WEEI.comreports.

Slaten topped out at 97 mph during a scoreless relief inning Saturday, Julian McWilliams of the Boston Globe reports.

The Red Sox acquired Slaten from the Mets on Wednesday in exchange for Ryan Ammons and cash considerations.

The Mets selected Slaten during the 2023 Rule 5 Draft on Wednesday.