Bummer tossed his sweeper a career-high 42 percent of the time in 2024. It was a logical decision to make it his primary offering, as it has been his most effective pitch ever since he implemented it back in 2019. The southpaw still threw plenty of sinkers and the occasional cutter to produce one of the highest groundball rates (61.3 percent, 98th percentile) in the league, but it appears a near 30 percent K-rate is likely to stick moving forward. This should elevate Bummer on Atlanta's bullpen hierarchy, especially after the team signed him to a 2-year, $13 million deal in November. The 31-year-old's career 1.33 WHIP is a concern, but he should be back in the mix for holds after recording just two last year. Read Past Outlooks