Mariners' red-hot hidden gem prospect may be the future at third base

Luis Suisbel is quickly emerging as a name to watch in the Seattle Mariners’ farm system, particularly as a potential long-term solution at third base.

While still in the early stages of his professional development with High-A Everett, Suisbel’s offensive consistency and impressive tools have begun to draw attention. With a 50-grade power tool and a 60-grade arm, according to MLB Pipeline, he possesses the type of physical skill set that plays well at the hot corner.

What's more, Suisbel has been on a heater for over a month. In 31 games since the start of May, he's slashed .313/.422/.536 with seven home runs. The latest was a walk-off blast against the Tri-City Dust Devils on Tuesday.

At the plate, Suisbel has showcased a solid combination of approach and power, consistently finding ways to get on base while also flashing some pop. His swing is compact yet quick, generating good bat speed and natural loft. While the raw power hasn’t fully translated into gaudy home run totals yet, his 27 combined home runs between 2023 and 2024 (at just 20 and 21 years old) suggest there’s more in the tank as he matures physically and refines his swing decisions.

Luis Suisbel's early minor league success could threaten Ben Williamson's future at third base with Seattle Mariners

Defensively, Suisbel’s strong arm gives him the ability to make throws from deep behind the bag or on the run, which is essential for third base. MLB Pipeline had this to say about his defense: "Suisbel does have some interesting defensive traits that work well from the left side of the infield, with a very strong arm, good hands and footwork."

As Suisbel progresses and hopefully makes it to the big leagues, working with infield guru Perry Hill could prove valuable to his development.

Of course, it’s still early. Suisbel’s success has come in High-A, and the road to Seattle runs through tougher competition in Double-A and Triple-A. It’s unlikely that he’ll pose any immediate threat to Ben Williamson, who is the Mariners’ only real long-term option at third base for the moment. But that doesn’t mean Suisbel can’t eventually surpass him. His ceiling is higher, particularly if the power fully develops.

For now, Suisbel remains a developmental project — but a promising one. If he continues to produce and refine his approach at the plate, he could find himself rising up prospect lists and positioning himself as the Mariners’ third baseman of the future and one of the most underrated international signings from a 2019-2020 class.

He’s not knocking on the MLB door yet, but in a year or two, Suisbel could be forcing the organization to take a serious look at the next man up at the hot corner