Dodgers also apparently adding Bronson Arroyo('s salary) in 3-team deal

The Dodgers' three-team trade with the Marlins and Braves hasn't yet been announced officially but the deal is reportedly done, per Ken Rosenthal of Fox Sports and Jeff Passan of Yahoo Sports. The principals are the same as reported on Wednesday night, with one surprise addition.

Source: Dodgers receiving Bronson Arroyo from Braves in three-way trade.

— Jeff Passan (@JeffPassan) July 30, 2015

Arroyo had Tommy John surgery last July, so he's not a factor until 2016 at the earliest. But in reality, he's just another monetary cost in a deal that will see the Dodgers give up Hector Olivera and four fringe minor leaguers.

Arroyo, 37, makes $9.5 million in 2015, with roughly $3.4 million remaining. He has a $13 million club option for 2016 with a $4.5 million buyout, per Cot's. That's a total of $7.9 million, though will be offset by some unknown amount from the Braves per David O'Brien of the Atlanta Journal-Constitution.

But the point is that Arroyo is unlikely to ever actually pitch for the Dodgers, but is rather just an addition to the cost for acquiring Mat Latos, Alex Wood, Jim Johnson, Luis Avilan and Jose Peraza.

What is interesting is that the Dodgers will need to make a multitude of moves just to accommodate all these new players on the 40-man roster. Arroyo is on the 60-day disabled list so he takes nothing to add.

But the Dodgers will need to add Latos, Wood, Johnson, Avilan and Peraza, while only subtracting Olivera. That means four corresponding moves are coming, and five if the Dodgers don't immediately designate Michael Morse for assignment.

Chris Hatcher last pitched for the Dodgers on June 14, and could conceivably be transferred to the 60-day disabled list for one spot, though that would keep him ineligible to return until Aug. 14 at the earliest. Hatcher has pitched three innings on a rehab assignment with Class-A Rancho Cucamonga that started on July 24. That rehab assignment can last up to 30 days, which could take Hatcher past the Aug. 14 date.

But more deals are coming, even minor ones, to create roster space.