Mariners Old Trade Is Suddenly Stirring Up Value Debate Again

A trade forgotten by the Mariners now has their former players shining in the 2026 World Series spotlight.

The Seattle Mariners’ 2018 trade for Edwin Encarnacion has a way of surfacing at the strangest times, and this October is one of them. On the eve of the World Series between the Tampa Bay Rays and Milwaukee Brewers, the deal is suddenly looking a lot more memorable elsewhere than it ever did in Seattle.

Back on December 13, 2018, the Mariners sent Encarnacion away in a move that now reads like a buried footnote - except two of the names tied to it are making noise on the biggest stage of the 2026 playoffs.

Yandy Díaz has been central to Tampa Bay’s run, to the point that he could have won ALCS MVP after tormenting his former club. In six games, he posted four doubles, two home runs and four RBI. It’s the latest punctuation mark on a four-year stretch that has already included two All-Star selections and a .300 batting average overall.

Jake Bauers, meanwhile, just took home NLCS MVP honors for Milwaukee. Against the Dodgers, he delivered two of the kind of at-bats that stick with you, one against Yoshinobu Yamamoto and another against Blake Snell in Games 2 and 3. He finished the sweep with four hits, three walks and six RBI as the Brewers rolled through Los Angeles in four games.

There’s also Carlos Santana in the aftermath of the deal, even if his path wasn’t directly tied to the Encarnacion move alone. He had only just arrived in Seattle 10 days earlier in the J.P.

Crawford trade, and when the Mariners sent him to Cleveland, the point was to clear salary. Instead, Santana responded with 34 home runs in 2019, matching his career high and producing the best full-season OPS+ of his career at 136.

The Mariners, though, didn’t get much lasting value out of the Encarnacion trade tree. They did get salary relief, which was the whole point of the move in the first place as Seattle worked through its “step back,” as Jerry Dipoto put it. The club trimmed its payroll by about $11 million from 2018 to 2019.

Encarnacion did provide a short burst of production, hitting 21 home runs with a 137 OPS+ in 65 games for Seattle in 2019 before being dealt to the Yankees for pitching prospect Juan Then. Then never developed into a real piece for the Mariners, appearing in nine games in 2023 before leaving affiliated ball in 2024.

Seattle also used the competitive balance pick it received from Cleveland in 2019 on right-hander Isaiah Campbell out of Arkansas. Campbell logged a solid 27-game stint with the Mariners in 2023, then was sent to Boston in the Luis Urías deal. His lone season in Seattle in 2024 produced 0.4 rWAR.

As trade trees go, this one doesn’t rank among Jerry Dipoto’s defining moves. It was never really supposed to. The savings mattered most, and anything more would have been a bonus.

Still, with Díaz and Bauers shining now, the old transaction has taken on a strange little afterlife. In that sense, maybe that’s enough.

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