De Los Santos has emerged as a reliable relief pitcher over the past two seasons, compiling a 3.18 ERA, 1.11 WHIP and 123 strikeouts over 119 innings during that span. With a mid-90's fastball, devastating slider and occasional changeup to left-handed hitters, the Dominican native deploys three pitches effectively, but he's especially tough on right-handed batters (.216 BAA since 2021). De Los Santos' strikeout and walk rates went in the wrong direction in 2023, but he cut his hard-hit percentage by nearly 12 points and racked up 16 holds. After logging a career-high 70 appearances (T-17th in the league) last year, the 28-year-old should once again be a bullpen workhorse in 2024. He was recently acquired by San Diego, where he figures to slot into the seventh and eighth innings. If De Los Santos manages to shave down his walk percentage, he may earn even more high-leverage opportunities with his new club. Read Past Outlooks