Just yesterday, when asked about a potential trade, Diamondbacks GM Dave Stewart said that "Mark Trumbo is my guy" and would only be moved if he was overwhelmed. Apparently the Seattle Mariners did just that, because as of a few minutes ago, Ken Rosenthal reported a deal was complete.
The D-Backs will also send reliever Vidal Nuno in exchange for right-handed pitcher Dominic Leone, former Cubs catcher Wellington Castillo, infield prospect Jack Reinheimer, and outfield prospect Gabriel Guerrero (Vladimir Guerrero's nephew). It seems that Leone will be Nuno's immediate replace, while Reinheimer and Guerrero will probably be assigned to AA, where they're currently playing.
Arizona has been in search of a catcher for seemingly the entire year, as their trio of Tuffy Gosewisch, Jordan Pacheco, and Jarrod Saltalamacchia had failed to put much together. Castillo will immediately become their everyday backstop.
With Yasmany Tomas' emergence as an everyday player, the writing was on the wall for Trumbo. He was "a man without a home" as Tomas desperately needed to be moved off of third base into the outfield. Trumbo's only other field position is unfortunately first base, and Paul Goldschimidt is as firmly entrenched there as anyone in baseball. Trumbo simply didn't fit the D-Backs, or the National League for that matter, and is now likely headed for full-time DH duty.
After a subpar season in 2014, Trumbo has rebounded tremendously, and is on pace to set career highs in ISO and wOBA. He'll be a sight for sore eyes in Seattle, as they've struggled to score enough runs for their pitching staff. Robinson Cano seems to be pressing, and adding a power hitter like Trumbo to put alongside Nelson Cruz and the other Mariners' players should help. It's surprising to see a deal like this so early in the season and manifest so quickly; but the Diamondbacks clearly loved the package that Seattle offered, and pulled the trigger.
Update: While Nuno has pitched exclusively out of the bullpen for Arizona this year, he has more experience as a starter, which is apparently why the Mariners wanted him.
Vidal Nuno said he was told that he will be joining the #Mariners rotation.— Steve Gilbert (@SteveGilbertMLB) June 4, 2015
It's unclear as to who Nuno will replace in the rotation, but the likely candidates are Taijuan Walker and Roenis Elias. Walker has struggled mightily in 2015, while Elias has held his own at the back end of the rotation.
Update II: It now seems that Trumbo will not be the full-time DH, as GM Jack Zduriencik is planning on putting him all over.
Jack saying he is prepared to have Trumbo play all over the field. Mentions "versatility" and offensive "big time ability"— Kevin Shockey (@KevinShockey) June 4, 2015
This comes as somewhat of a shock, as Trumbo is a defensive liability at almost every position except first base.