No pitcher under the age of 25 has more saves than Roberto Osuna . He’s notched 154 saves through five seasons in the majors. Osuna led the American League with 38 in 2019 for Houston. His ERA of 2.63 comes with a 3.60 xFIP and 0.88 WHIP. During his career, Osuna owns a WHIP below one (0.91 to be exact).

Osuna also recorded his highest swinging strike percentage (16.9 percent) his first full season with the Astros and limited contact against to 68.6 percent. With strong command metrics, Osuna yielded a 4.7 walk percentage with a 28.9 strikeout rate. He did show some cracks in the armor with his home run per fly ball average jumping to 12.3 percent last season, but with home runs up across baseball, it’s more than tolerable.

Fantasy owners will need to not Osuna’s splits from last year when they invest for 2020. In the first half, Osuna surged with a 1.95 ERA over 37 innings with a 39:6 K:BB and 0.78 WHIP. After the break, he finished with a 3.54 ERA in 28 innings with a...