Day Two of the MLB draft winds down and comes to a close after a marathon of a Monday. If you missed any of the Mariners’ previous picks, check out our handy-dandy draft headquarters for a draft tracker and links to analysis.

Round Sixteen: RHP Casey Hintz, Arizona

Another side-arming right hander that’s joining the org, Hintz has a lean and wiry build in a six foot frame that relies heavily on deception from his low release point. Primarily employing a sweeping slider and a low 90’s fastball, Hintz is able to attack hitters of both handedness well thanks to a changeup he’ll use against lefties, though it’s behind the slider at this stage. He pounds the zone well and could be an interesting bullpen piece, particularly if they’re able to get him throwing a few ticks harder. Hintz dominated on the Cape last season and saw both his strikeouts tick up and his walks tick down, perhaps a sign there’s a minor adjustment to be made to unlock another level to his game.

Round Seventeen: RHP Anthony Karoly, Nova Southeastern

A physical six-foot righty out of Division II Nova Southeastern, Karoly has a fastball that sits in the mid 90’s as well as a cutter and slider that has solid depth to it. Karoly could get a bit wild at times, however he struck out 47 batters across 28 innings this season, good for a K/9 over fifteen. There doesn’t appear to be any projection left in the frame, though his stuff looks plenty good enough at present to play in a bullpen role. Currently in the transfer portal, I’m curious what it will take to sign him if he wants to pursue an opportunity on a bigger stage. I doubt it’s an overslot deal, but at this point, he’s probably the most likely of any of these college arms to do so.

Transfer Portal RHP

2 years of eligibility left

HT: 6’0 WT: 210

FB: 94-96 ~ T97
CT: 90-94
SL: 80-85

2025 NSU Season Stats:
28.0 IP ~ 4.18 ERA ~ 47 SO ~ 18 BB ~ .168 B/AVG

Contact:
(352) 430-7109
anthonykaroly47@gmail.com@FlatgroundApp pic.twitter.com/sJctqeEl7m

— Anthony Karoly (@AnthonyKaroly47) May 31, 2025

Round Eighteen: RHP Griffin Stieg, Virginia Tech

In what is perhaps the millionth time they’ve done so in this class, the Mariners took a low slot right handed pitcher with their pick. Griffing Stieg, a 6’4 220 lb hurler, is a T250 player on several boards and throws a pair of fastballs that both sit in the 92-95 range and have touched 97. The two-seamer bores in on righties and gets good run and sink, pairing well with a slider that’s still a work in progress but has flashed well. He also throws a changeup to keep hitters honest, though like the slider, it needs refinement. Stieg missed the entire season this year and is committed to Alabama as a transfer, so he’s definitely got more leverage for a collegiate relief profile than usual and could be a tougher sign. It feels as though he may want to reestablish some value for the Crimson Tide and show off his starter traits in an extended role, however there’s a chance the Mariners have a bit of cash to throw his way to make him consider the pro side.

While he’ll be out for all of this season, one college arm I’m rather bullish on is RHP Griffin Stieg (@HokiesBaseball). After showing flashes as a Freshman in 2023 to the tune of 24 Ks across 18.2 IP, Stieg took a step forward last spring and pitched his way to a 4.70 ERA with… pic.twitter.com/OAZ9xPRg4q

— Peter Flaherty III (@PeterGFlaherty) January 22, 2025

Round Nineteen: LHP Cameron Appenzeller, Glenwood HS

Don’t get your hopes up with this one. Appenzeller, one of the best left handed pitchers in this class, is likely an insurance option in case anything with the Nick Becker pick ends up falling through. Appenzeller has a strong commitment to Tennessee and would take a sizable bonus to sign away, a resource the Mariners do not have at the moment. He’s a really solid player that will likely make major money in both NIL and his draft year, but it does make me somewhat cautious of how the negotiation process with their second round shortstop is going.

Round Twenty: SS Estevan Moreno, Notre Dame

Moreno is a large-bodied shortstop at 6’3 215lbs that saw his bat take a step back after a promising 2024 season for the Fighting Irish. A team captain manning the six, Moreno looks like a buy low option for the Mariners, looking to get him back to where he was a year ago. He’s got strong hands with some decent bat speed and obviously has above-average size for the position, so there’s definitely some aspects to his profile that could be attractive to the M’s at this stage of the draft, however the swing and miss is a major issue at present and will need to tick down in a big way as a professional. He seems like someone they’ll try to play the long game with rather than send him straight to affiliate ball, but if it’s a small tweak they see in the profile, perhaps they’ll give him some run this year.

That wraps up our coverage of the 2025 MLB Draft. Thanks for following along with us and GOMS!!