Assessing Tuesday's MLB Trades: Seranthony Dominguez Swapped for Intriguing Prospect, and More

Tuesday was a pretty light day in terms of MLB trades, but we're going to cover them anyway so we can spend more time on the big deals that happen between now and the trade deadline on Thursday.

Here's the breakdown of Monday's trades, which has links to trade breakdowns from last week.

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Blue Jays Acquire a Reliever

The Baltimore Orioles shipped Seranthony Dominguez to the Toronto Blue Jays. Juaron Watts-Brown was the return for Dominguez.

The teams played each other on Tuesday in a doubleheader, and he was simply able to walk over to his new team's clubhouse in between games after the trade was processed.

Dominguez pitched for his new team in the second game. He worked a scoreless inning, striking out two batters and working around a hit batter.

He's now 2-3 with a 3.16 earned run average over 44 appearances and 42 2/3 innings this season. Dominguez has allowed 19 runs (15 earned) on 32 hits and 24 walks, while striking out 56 batters.

He'll work in a high-leverage role for a contending Blue Jays' team now. Even though he only has two saves on the season, he's rostered in 26% of fantasy leagues synced here at FantasySP. His strikeout work is strong, and that gives him fantasy appeal in some deeper setups.

Joining a better team means more chances to earn holds and wins. If he keeps up his strikeout work and solid ERA, Dominguez should see his fantasy outlook creep up a bit.

Watts-Brown might be the biggest prospect dealt so far this season. I'm really high on him, at least.

He's the No. 8 prospect for the Orioles after the trade. Watts-Brown is 23 years old, stands 6-foot-3 and weighs 190 pounds. The right-handed pitcher was a third-round pick in 2023 and is expected to debut in 2026.

Watts-Brown has a 4.17 ERA over 192 career minor league innings, but sports a 3.54 ERA over 89 innings across two levels this season. 

He is 2-5 across 19 starts this season. Watts-Brown has struck out 115 batters, walked 38 and has a .214 average against him.

Dominguez is a good relief option for the Blue Jays, but the Orioles are going to win this trade in the long haul if Watts-Brown pans out. He's a bit underrated as a prospect in my eyes, and I think he could be an above-average starter in the long haul.

If Watts-Brown transitions to the bullpen, he has top-end closer potential. He's a good dynasty asset to grab if he's available in your league, and he should be in the big leagues at some point next season - unless the Orioles decide to get a look at him later this year.

Rays Get a Catcher Back

After sending Danny Jansen to the Brewers, the Rays landed Nick Fortes from the Marlins. Matthew Etzel was the player sent from the Rays to the Marlins.

Fortes is barely owned in any fantasy leagues, so he's not a major fantasy asset. He'll likely split the workload with Matt Thaiss in Tampa Bay.

He played for the Rays on Tuesday, walking and scoring a run across three plate appearances. Fortes hit eighth and started at catcher.

Fortes has a .237 average and .289 OBP over 59 games and 144 plate appearances this season. He has 31 total hits, including six doubles, a triple and two home runs. Fortes also has 10 RBIs, 12 runs scored, eight walks and 22 strikeouts.

Fortes is more of a backup catcher in the real world, and that only leaves him fantasy value in the deepest of leagues. He could play more with an injury to Thaiss, but he's still not ever likely to really be even a minor fantasy asset.

Etzel is the new No. 30 prospect for the Marlins. He's 23 years old, stands 6-foot-2 and weighs 211 pounds. Etzel was drafted in the 10th round in 2023 and has a 2026 ETA.

The outfielder has a .267 average and .365 OBP over 205 minor league games across three seasons. Etzel is hitting .230 and getting on base at a .360 clip over 56 games at Double-A this season. He has eight doubles and five homers among his 45 total hits, along with 34 RBIs, 31 runs scored, 41 walks, 62 strikeouts and 17 stolen bases.

He's not a highly-regarded prospect, but he could be given a shot at the big leagues by the Marlins eventually. This deal will probably be won or lost by how Etzel performs in the long run.

If he can even become a semi-regular MLB starter, then the Marlins win this trade. If he fails to ever make a difference in the big leagues, then the Rays will take the deal.

It's a pretty minor deal though, and isn't likely to have huge fantasy repercussions.