The Boston Red Sox traded Marcelo Mayer to the San Francisco Giants for left-handed reliever Erik Miller at the trade deadline — at least, that appeared to be the deal at first. It took a few minutes, but soon it was announced that the Red Sox also got a prospect in return: outfielder Carlos Gutierrez.
Who is Gutierrez? Was this a good return? Why did the Red Sox give up on Mayer seemingly so fast? Let’s try to break everything down.
There were some big feelings about this trade on both sides. Some fans felt he was given up on too quickly, while others felt it was time to move on. There seemed to be those in the organization who had lost faith. That weird situation in June certainly didn’t help matters.
Mayer can still have a solid major league career. I understand the concerns. Some are warranted, while others felt like piling on. But the talent is there, and he’s never come across as anything but a fantastic person in every interaction I’ve had with him.
However, moving on did make some sense. The Red Sox added Curtis Mead recently. Caleb Durbin has emerged as the obvious third baseman of the next few years. Franklin Arias is the likely shortstop of the future. All the pieces seem to be in place for the infield. Where was Mayer going in that mix?
A deeper look at Carlos Gutierrez, the Red Sox's newest outfield prospect from Marcelo Mayer trade
The Red Sox flipped him for Miller, a gross left-handed reliever with multiple years of control. He has had massive walk issues in 2026, but everything else is phenomenal. Boston has been great at fixing walk issues (look at Tyron Guerrero and Aroldis Chapman recently). If they can fix that, Miller goes from a great bullpen arm to an elite one.
Gutierrez is a 21-year-old left-handed-hitting outfielder. He’s spent all season in High-A and there is certainly reason for intrigue. Gutierrez isn't likely to be some elite prospect, but there are a few things to love that give him a great floor.
Gutierrez is slashing .271/.385/.441 with 18 doubles, three triples, and nine home runs in 83 games. He’s driven in 45 runs, scored 65, and stolen 26 bases.
The Mexico native doesn’t have much power. His swing is nice and compact, though. Boston has added some pop to prospects (Henry Godbout, Yophery Rodriguez, etc.), so it wouldn’t shock me if they maybe get him going a bit there.
Guterriez has a great hit tool, even without too much pop. He’s striking out just 19.6% of the time and walking 15.1% of the time. There’s not a lot of whiff in his game, and he’s not swinging at pitches out of the zone. Meanwhile, Gutierrez has plenty of speed (as shown by his 26 steals in 28 attempts) and is a plus defender in the outfield.
Speed and defense give the outfielder nice floor. Those two things can carry a prospect all the way to Triple-A without the bat ever really showing up. If you can get any sort of offensive production, now we’re cooking.
Gutierrez is the exact type of position player prospect the Red Sox have targeted the last few years. He does the small things right, and he has a good swing that they can work with.
Over the last two drafts, the Red Sox have targeted players with good swings that they could try to add some exit velocity to. It’s already paid dividends with Godbout, Mason White, and Jack Winnay, to name a few guys. Gutierrez is another swing they can work with. And while they work on it, the defense and speed will always be there to produce.
Trading Mayer hurts. Even if you were someone who was completely out on him, it has to sting a little just because he was seen as such a franchise-altering player just a few seasons ago. The hype when he fell to the team at four was palpable. Sometimes things don’t work out, though. The Red Sox got a fantastic left-handed reliever in return, and it took about three seconds for Gutierrez to have my attention.
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