The Dodgers agreed July 20 to acquire Seth Halvorsen from the Rockies in an intra-division trade, adding a 26-year-old reliever with fastball life, club control and one more rehab stop before anyone decides where he fits next.
Halvorsen, who is on the 15-day injured list with shoulder inflammation, will head to Triple-A Oklahoma City to finish a rehab assignment he recently started. Once that work is done, the Dodgers can choose whether to formally option him or put him straight into the major league bullpen.
That choice matters because Halvorsen is not arriving as a finished product. He has thrown a four-seamer that averaged 99.6 mph in the majors and 99.9 mph in Triple-A this season, with a 32.4% strikeout rate and a 2.04 ERA in 17 1/3 minor league innings. But the same pitcher has also had to live with shaky command, a 12.1% walk rate in the majors and a 4.74 ERA in 19 major league innings this season.
The wider picture helps explain why the Dodgers made the move now. The club entered the day with a Major League Baseball-best 63-37 record, but it has also been juggling several injuries in the bullpen, with Edwin Díaz out since late April, Blake Treinen sidelined in mid-June, Brusdar Graterol not yet back after back surgery on June 1 and Ben Casparius out since mid-April. Tanner Scott has handled the closer role, and Klein, Vesia, Edgardo Henriquez and Jack Dreyer have all posted ERAs under 3.00.
Colorado selected Halvorsen in the seventh round in 2023, and the trade gives Los Angeles a controllable arm with more than five seasons of club control and two more option years after this one. That is the kind of bet clubs make when a live arm is available before he has fully settled into a major league role.
The one piece that still matters most is the one the trade did not answer immediately: the two prospects going back to Colorado were still unnamed when the deal was announced. Until those names surface and Halvorsen finishes the rehab assignment, the move reads less like a final bullpen answer than the start of one.
