Boston Red Sox relief prospect Luis Guerrero
The right-handed reliever posted a 1.81 ERA, .150 BAA, and 1.13 WHIP in 43 appearances at the level. He struck out 59 batters compared to 30 walks in 49 2/3 innings. Guerrero also racked up 18 saves. The walks were an issue, but he showed signs of being able to get that under control. And the dominance led to a late-season promotion to Triple-A.
The Red Sox have high hopes for the flamethrower. He could be in line to be their long-term closer. In order for that to happen, though, Guerrero will need to show improved control in Triple-A. If he can do that, Boston could call on his services this season. Don't be surprised if he's immediately thrust into a big role.
The Red Sox have a fully-stocked bullpen, but have quite a few pieces that could be moved during the season. One of those pieces is already being mentioned quite a bit in trade talks.
If Boston trades Kenley Jansen, Guerrero's path opens up even more. No, he won't be the closer from day one, but the Red Sox might not see a need for him to work much in Triple-A as long as the walks are down.
It might take a month or two, but once Luis Guerrero arrives, expect him to play a major role in the bullpen for the Sox in 2024.