The Cubs have claimed left-hander Ryan Rolison off waivers from the White Sox, per ESPN’s Jesse Rogers. The Sox designated Rolison for assignment when they needed to open a 40-man roster spot for free agent signee Sean Newcomb. The Cubs currently have four vacancies on their 40-man, so a corresponding move isn’t needed.
A first-round pick by the Rockies back in 2018, Rolison didn’t make his major league debut until the 2025 season, as injuries significantly derailed his trajectory to the majors. He wound up tossing 42 1/3 frames for Colorado — 31 relief appearances, one start — and being tagged for a grim 7.02 earned run average in that time. He pitched well out of the bullpen in Triple-A, however, notching a 3.34 ERA with a 25.2% strikeout rate, 7.1% walk rate and 48.8% ground-ball rate.
Rolison previously sat in the upper 80s and low 90s with his four-seamer while working as a starter, but his average fastball jumped to 93 mph this season while working in short relief. Home runs were a major issue for him in his debut campaign (2.34 HR/9), but despite that penchant for serving up the long ball, he actually induced a large amount of weak contact. When opponents did manage to barrel Rolison, those balls left the yard too often, but hitters still averaged a measly 87.5 mph off the bat against him.
It’s been some time since the former Ole Miss standout was a prospect of real note, but big league clubs clearly still see something in Rolison now that he’s healthy. He’s bounced from the Rockies, to the Braves, to the White Sox, to the Cubs now since his original DFA in Colorado. Following his DFAs with the Rockies and Braves, he didn’t even make it to waivers. The Braves and Cubs acquired him via small trades. And even in spite of those rough-looking numbers in his debut, he still wasn’t able to be passed through waivers by the South Siders.
Rolison has a minor league option remaining, so the Cubs don’t necessarily need to carry him on the Opening Day roster. He’s been used more in relief than as a starter in recent seasons, which isn’t a huge surprise for a former starter who lost about two years of his still-young career to a torn labrum in his left shoulder, which required surgery. The Cubs are quite deep in rotation options — particularly with a trade for Marlins righty Edward Cabrera reportedly in its final stages — and have deepened their bullpen this winter with signings of Phil Maton, Hunter Harvey, Jacob Webb, Hoby Milner and Caleb Thielbar. Rolison joins lefties Luke Little and Riley Martin as southpaw bullpen options who seem likely to begin the year in Triple-A Iowa.