The trade, completed on Tuesday, saw the Red Sox sending minor league pitcher Ovis Porter, who has reached High-A this year, to the Reds in exchange for Sims.

The Red Sox made the move due to the injuries to right-handers Chris Martin and Justin Slaten, who have been crucial in setting up closer Kenley Jansen. With the bullpen heavily used since the All-Star break, Sims is expected to step into high-leverage situations for the Red Sox as they await the return of Martin and Slaten.

Sims, a 30-year-old veteran, brings a solid track record with a career 3.57 ERA in 43 games. Throughout his career with the Braves and Reds, he has primarily pitched out of the bullpen, appearing in 230 games, with only 14 as a starter. Notably, Sims has displayed effectiveness against both left-handed and right-handed batters this season, holding lefties to a. 697 OPS and righties to a. 765. In his last 19 appearances, he has maintained a strong 2.25 ERA.

This trade is part of the Red Sox's active approach at the trade deadline this season, with previous acquisitions including starting pitcher James Paxton and catcher Danny Jansen. Sources within the organization indicate a heightened focus on winning this year, as the team aims to build upon a growing farm system under the leadership of new additions like Sims.