The Mets kept clearing the deck on Monday, and Luke Weaver was the latest arm out the door.
New York sent the reliever to the Pittsburgh Pirates in exchange for minor league shortstop Sammy Stafura, continuing a deadline selloff that already had moved Freddy Peralta, Huascar Brazoban, and Brooks Raley over the previous 26 hours. ESPN’s Jorge Castillo first reported the deal.
Weaver had become one of the Mets’ most valuable bullpen pieces, turning into a dominant setup man with a 2-1 record, a 1.84 ERA and a 0.82 WHIP in 42 appearances. He struck out 45 batters in 44 innings, and his stock climbed even higher after a two-month scoreless stretch in May and June.
With Padres closer Mason Miller likely staying put, Weaver had a real shot to be the most impactful reliever moved at the deadline. His extra year of team control only made him more attractive.
The return was Stafura, a name that should matter to Mets fans because of the upside attached to it. He ranked ninth on the Pirates’ top 30 list by MLB Pipeline after being a second-round pick by the Cincinnati Reds in the 2024 draft. Pittsburgh got him last summer in the Ke’Bryan Hayes deal.
This season, Stafura has spent most of his time at High-A Greensboro, where he has been on a tear. Entering the day, he was hitting .301 with 19 home runs, 51 RBI, 16 stolen bases and a 1.021 OPS in 47 games. He still isn’t a top-100 prospect, but the reviews on his speed and defense are strong enough to give him a real path forward, whether that ends up being at shortstop as a possible Francisco Lindor successor or at third base if he moves quicker than expected.
The bat is still the part that raises eyebrows. Stafura struck out 129 times in 119 games last season, so offense remains the big question.
Even so, the Mets are clearly betting that his 2026 breakout is the start of something bigger. He’s also a local product, having grown up in Westchester County and played at Walter Panas High School.
On pure prospect value, Stafura gives New York a legitimate piece for the system. The source material makes it clear he may wind up as the highest-upside player the Mets have acquired so far, and it wouldn’t be a surprise if he landed inside the organization’s top five prospects by the end of Monday.
But the bigger issue is timing. The Mets have said they want to win in 2027, with Francisco Lindor and Juan Soto in their primes, and Weaver looked like a reliever who could help that push next summer. Instead, David Stearns chose the prospect route, sending Weaver to Brooklyn rather than keeping him in the bullpen for 2026.
That’s where the trade gets tricky. Weaver’s value was as high as it’s going to get, and if 2027 is truly the target, the Mets needed a return that fit that window more cleanly than this one does.
Stafura could become a good player down the line, but for a pitcher like Weaver, the Mets had to get more immediate value back. That’s what drags the grade down.
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