Cubs Claim Eduarniel Núñez

The Cubs have claimed right-hander Eduarniel Núñez off waivers from the Orioles, according to announcements from both clubs. Jesse Rogers of ESPN reported the claim prior to the official announcement. The Cubs optioned Núñez to the Arizona Complex League and don’t need to make a corresponding active roster move. Their 40-man roster had two vacancies due to reliever Ty Blach and infielder Nicky Lopez being designated for assignment last month, so Núñez can fill one of those spots.

Núñez, now 27, is a known commodity to the Cubs. They signed him as an international amateur almost a decade ago. By the end of the 2024 season, he didn’t have a roster spot and became a minor league free agent. He signed a minor league deal with the Padres and got added to that club’s roster in the summer of 2025. He was sent to the Athletics in the Mason Miller trade but was designated for assignment in May of this year. He went to the O’s in a cash deal but Baltimore designated him for assignment a few weeks later, which has allowed his original club to scoop him back up.

The righty has shown some strikeout potential but with a lot of room for improvement in terms of control. His four-seamer averages in the upper-90s and he also throws a mid-80s slider and curveball. Dating back to the start of 2023, he has thrown 171 innings on the farm with a 3.42 earned run average. He struck out 29.4% of the batters he faced in that time but while also giving out walks at a massive 15.4% pace. He also made ten appearances in the big leagues for the A’s last year and walked 18.3% of opponents.

With the Cubs sending Núñez to their Arizona complex, they presumably have some plan in mind to get him on track, perhaps with some kind of mechanical adjustment. He can remain on optional assignment for the rest of this year and one additional season, so the Cubs could be patient with him. They don’t have short-term pressure on the 40-man as they still have a vacancy after this move. Though whether he can hold his roster spot in the long term will depend on what the team sees in the coming weeks as they get a close-up look at him