What To Know About the Blue Jays New Minor League Signings

[Jesse Burrill]

If you were looking for an unsung hero behind the Blue Jays' run to Game 7 of the World Series, you wouldn’t have to go far before Eric Lauer's name came up. He made his season debut at the end of April, and after a run of quality pitching out of the bullpen, he joined the rotation full-time on June 11, remaining there until the end of August, after which he transitioned back into the bullpen.

On the season, Lauer posted a 3.18 ERA with 2.2 bWAR over 104.2 innings, adding another 8.2 frames during the postseason, including an incredible outing in Game 3 of the World Series that held the Dodgers scoreless over 4.2 innings.

For as sensational as Lauer was in 2025, the day he became a Blue Jay was uneventful; it didn't make many headlines when he signed a minor league contract with the Blue Jays in December of 2024.

Now, it's quite rare that a minor league signing has as much impact on a team as Lauer did. With all due apologies to Matt Whatley, Kevin Gowdy, and Amir Garrett, that's the rub when it comes to minor league contracts; if these players were all expected to be good, then they wouldn’t be in this category. At some point, it becomes a matter of throwing darts and hoping one lands on the bullseye.

With that being said, the Blue Jays have already signed a few players to some minor league deals. Let’s learn more about them to see if any of them could have a Lauer-sized impact in 2026.

Michael Plassmeyer, LHP
2025 Stats (in AAA with TEX): 105.2 IP, 4.43 ERA, 34 BB, 99 K

Plassmeyer, now 29 years old, was drafted in 2018 by the Mariners and has bounced between six different teams in his seven minor league seasons. He was first traded after the 2018 season in a deal that also sent Mike Zunino and Guillermo Heredia from the Mariners to the Rays, with Jake Fraley and Mallex Smith going the other way.

Plassmeyer has 11 innings of big league experience under his belt, with the Phillies in 2022 and ‘23. He’s a three-pitch pitcher (fastball, changeup, slider) that averages just under 89 mph on his heater. He’s a strike thrower, and if the Blue Jays can find a way to have him miss more barrels, then he could carve out a Lauer-ish role in ‘26 as a swingman who can move between the bullpen and the rotation.

Rodolfo Castro, 2B/SS
2025 stats (in AAA with PHI): 133 G, .234/.324/.421, 19 HR, 18 SB, 22.7 K%, 10.3 BB%

If the name Rodolfo Castro stands out, you might remember him from a play in 2022 when his cellphone famously flew out of his back pocket during a headfirst slide into third base. The incident earned him a one-game suspension under MLB’s electronic device policy.

The now 26-year-old does have 194 MLB games under his belt, and although he hasn’t hit well (career 83 wRC+), Castro does still have a nice combination of power and speed. While he has played all over the infield, third base appears to be his best defensive fit.

Castro had been a switch-hitter his whole career, but gave it up to hit strictly right-handed in 2025. The Blue Jays may think there is more to come as he gets more repetitions from the right side. He could see some big league time in 2026 if the bat holds up.

Tanner Andrews, RHP
2025 Stats (in AA with MIN): 16.2 IP, 3.78 ERA, 18 K, 3 BB

Andrews, now 30, was selected by the Marlins in the 10th round of the 2018 draft. He reached as high as Triple A with the Giants in 2023 and ‘24 but has yet to make his major league debut.

Andrews is a three-pitch pitcher (fastball, splitter, and slider) and has battled bouts of wildness in his career, carrying a 9.0% career walk rate in the minor leagues. However, he did trim that number down to just 4.0% in a small 2025 sample, and paired that with a FIP that dipped below 3.00 for the first time (2.01). The Blue Jays likely buy into that progress, and if Andrews can continue that trend, then he’ll provide some big league relief depth or, at worst, become an intriguing relief option in Buffalo.

Carlos Mendoza, UTIL
2025 Stats (in AA-AAA with DET): 97 G, .287/.394/.409, 7 HR, 12 SB, 11.1 K%, 13.0 BB%

Mendoza, 26, is a left-handed-hitting utility player who has seen time at second base, third base, left field, and right field in the minors. At just 5-foot-7 and 165 lbs., he’s never likely to be much of a power hitter, but through two levels in the minors in 2025, he did have a .394 OBP, a good contact rate (83.9% in '25), and he walked more than he struck out.

Versatile, good contact skills, and a wRC+ above 100 at almost every level at which he’s played. You can see why the Blue Jays would have interest here. He’s a candidate to make his big league debut this season if things break his way.

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No one is expecting these players to be game changers in 2026, but no one expected Lauer to be one either. The most likely scenario is that these players will spend more time with the Bisons than the Blue Jays. Still, there is enough skill and upside here to find some reason for optimism, and it wouldn't be a surprise if one or two make an impact at the big league level this season.

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