Rays Designate Austin Shenton For Assignment

The Rays have added left-handers Joe Rock and Ian Seymour to their 40-man roster, reports Marc Topkin of the Tampa Bay Times (X links), protecting them from being selected in the upcoming Rule 5 draft.  Tomorrow at 5pm Central is the deadline for players eligible for that draft to be protected by being selected to a club’s roster. The Rays had one 40-man vacancy and opened another by designating infielder Austin Shenton for assignment. The club also avoided arbitration with right-hander Cole Sulser by signing him to a deal for 2025, though the terms of his deal haven’t yet been publicly reported.

Rock, 24, was a competitive balance round pick of the Rockies in 2021 but came to the Rays as part of the March 2024 trade that sent infielder/outfielder Greg Jones to Colorado. Rock’s first season in his new organization went fairly well, as he tossed 139 2/3 Triple-A innings with a 4.58 earned run average, 21.6% strikeout rate, 5.7% walk rate and 45.3% ground ball rate.

Seymour, 26 next month, was a second-round pick of the Rays in 2020 with generally strong results since then. He has a 2.50 ERA in 259 1/3 innings over the past four years, pairing a 31% strikeout rate with an 8.6% walk rate. That includes 145 1/3 innings split between Double-A and Triple-A in 2024, with Seymour posting a 2.35 ERA this year while striking out 28.1% of opponents and only giving out free passes at a 7.1% clip.

Given the strong results from both pitchers, the Rays decided they didn’t want any rival clubs plucking them away, so both southpaws get roster spots today. While that’s surely exciting for both of them, the flip side is that it’s bad news for Shenton.

Turning 27 in January, Shenton was drafted by the Mariners in 2019 but came to the Rays in the July 2021 trade that sent Diego Castillo the other way. In the upper minors and the majors, Shenton has generally shown a “three true outcomes” approach. He has taken 1,168 plate appearances in the minors over the past three years with 57 home runs, a 14.6% walk rate and a 28.6% strikeout rate. All that has led to a .276/.387/.522 line and 135 wRC+. In a small sample of 50 big league plate appearances, he has a 16% walk rate, 28% strikeout rate, .214/.340/.405 line and 120 wRC+.

There are some intriguing numbers in there but Shenton also has some flags. For one, health has been an issue, with 2023 being the only year of his career in which he played more than 102 games. His defense is also not a standout tool. While he can play both infield corners, his work at third isn’t well regarded. If he’s more of a first base only guy in the long term, that will put more pressure on his bat. While he has often been able to perform offensively, it will be challenging to keep it up in the majors with his strikeout tendencies.

Those flags have nudged him off the Rays’ roster but his positive qualities could get him a chance somewhere else. He still has a couple of option seasons and just a few days of service time, meaning he could be a cheap depth option for some other club willing to give him a roster spot, either via a trade or a waiver claim. DFA limbo can last a week but the waiver process lasts 48 hours, meaning the Rays will have five days to explore trades.

As mentioned, all clubs will be adding players to their rosters between now and tomorrow evening for Rule 5 protection, so perhaps roster spots will be at a premium and make it harder for one of the 29 other teams to take a shot on Shenton.

As for Sulser, 35 in March, he was acquired from the Mets in a July cash deal. He went on to toss 11 2/3 scoreless innings for the Rays after that deal despite subpar strikeout and walk rates of 18.6% and 14% respectively. He now has 149 career innings with a 3.74 ERA, 25.3% strikeout rate and 11.4% walk rate.

MLBTR contributor Matt Swartz projected him for a $1MM salary next year, not much above the $760K league minimum. It’s unclear how much he will make in 2025 but more information will likely be forthcoming as the offseason progresses.