Cubs Claim Justin Dean

The Giants announced that outfielder Justin Dean has been claimed off waivers by the Cubs. San Francisco had designated him for assignment last week to open a roster spot for Tyler Mahle. Chicago had multiple 40-man vacancies and doesn’t need to make a corresponding move. Susan Slusser of the San Francisco Chronicle was among those to relay the transaction.

Dean, 29, just made his major league debut with the Dodgers last year. He was mostly used as a pinch runner and late-game defensive replacement. He appeared in 18 games for the Dodgers but only made two plate appearances. He then appeared in 13 postseason games as part of the Dodgers’ World Series run, but without making a plate appearance in any of those.

His speed gives him a decent floor as a guy who can steal some bases and run the ball down on the grass. From 2021 to 2025, he swiped 176 bags in 213 attempts in the minors, an 82.6% success rate.

His offense is more questionable but his 2025 was encouraging. Throughout his minor league career, he has drawn free passes but also been punched out at hefty rates. From 2021 to 2024, he had a nice 12.2% walk rate but an ugly 29.6% strikeout rate. In 2025, he was only struck out 23.6% of the time while keeping his walk rate at a healthy 11.2%. The result was a .289/.378/.431 line and 110 wRC+ in Triple-A, though that was propped up by a .380 batting average on balls in play.

The Dodgers bumped him off their 40-man at the end of the season. The Giants grabbed him off waivers and held him for a couple of months but ended up putting him back on the wire. For the Cubs, he’s a fine depth add, especially since they had multiple roster spots open. Dean still has a full slate of options and doesn’t need to be on the big league roster.

Chicago’s outfield alignment projects to feature Ian Happ, Pete Crow-Armstrong and Seiya Suzuki in starting roles. Kevin Alcántara, James Triantos and Pedro Ramírez are on the 40-man roster and could be candidates for bench roles. Triantos and Ramírez have no big league experience and still have options, so the Cubs would likely prefer them to be getting regular reps in the minors as opposed to sitting in the big league dugout. Alcántara has been optioned for extended stretches in each of the past three years but could qualify for a fourth option.

Since Dean is himself optionable, he could either be getting regular playing time in the minors or he could be in the majors, providing speed and defense off the pine. He has just 52 days of service time, so he can be cheaply controlled for the foreseeable future, as he won’t qualify for arbitration for at least three years.