The Mets are open to trading closer Edwin Diaz before Wednesday’s deadline about eight months after acquiring him, and the Red Sox desperately need bullpen help.
Should the Red Sox make an offer for Diaz, it likely would include either Triston Casas or Bobby Dalbec, according to ESPN’s Buster Olney, who adds the reigning World Series champs are “confident” they will make a significant bullpen addition to help them get back into the playoffs.
Casas, 19, was Boston’s first-round pick from the 2018 draft and is the Red Sox’s No. 1 prospect, according to MLB Pipeline, which has Casas ranked No. 90 on its top 100 prospects list. In 93 games in Single-A this season, the 6-4, 238-pound Casas is slashing .252/.346/.486 with 17 homers, 68 RBIs and 19 doubles. He’s played 73 games at first base this year and eight games at third. ESPN’s Jeff Passan said scouts doubt Casas can play third base long-term.
Dalbec, 24, is ranked by MLB Pipeline as Boston’s No. 2 prospect, but he’s not in its list of the top 100 prospects in baseball. The 6-4, 225-pound right-handed hitter was a fourth-round pick out of Arizona in the 2016 draft and is currently in Double-A, where he’s slashing .230/.371/.455 with 20 homers, 52 RBIs, 15 doubles and 66 walks in 101 games. Dalbec has played 88 games at third base this year along with 12 at first.
The Mets have a lot of cards they can play after acquiring Marcus Stroman Sunday, and they need to restock their farm system after dealing four of their top prospects over the last eight months. Perhaps they’ll take advantage of Boston’s anxiousness to strengthen its bullpen.


