Arjun Nimmala is raking in the Arizona Fall League, and the former Blue Jays prospect isn't looking back. The José Soriano trade is starting to look a lot more interesting.

Through seven games with the Mesa Solar Sox, he's hitting .379. He's also driven in seven runs.

"I got a call from the farm director and he goes, 'We've just traded you to the Angels for José Soriano,'" Nimmala told MLB.com this week. "It was crazy."

Toronto sent him to the Angels along with Eddie Micheletti Jr. and Angel Rivero. Nimmala, the 20th pick in the 2023 draft, was one of the club's top prospects at the time.

He'd been hitting at Double-A New Hampshire, with a .279 average and .355 OBP over 33 games.

After the deal, he kept going with the Rocket City Trash Pandas. In 27 games there, he hit eight home runs and drew 21 walks.

José Soriano's rough Toronto start adds pressure to the deal

Now he's the Angels' No. 1 prospect, and he could start 2027 at Triple-A. The 20-year-old sounds thrilled about it.

"Knowing the Angels believed in me and saw the potential in me, it makes me super proud," he said. "I just want to prove them right."

Toronto's side of the ledger hasn't delivered yet. Soriano posted a 5.30 ERA over 10 starts with the Jays after a strong run in Anaheim.

Was the trade a mistake? Not yet, but it's trending in an uncomfortable direction.

The Jays felt comfortable moving him because of JoJo Parker's breakout. Parker hit .270 with a .399 OBP between Dunedin and Vancouver this season.

That logic only holds if Soriano fixes his pitch mix. Trading a top prospect for a starter who regresses on arrival is the kind of deal that haunts a front office for years.

Prospect trades are like planting a tree in your neighbour's yard. You only find out how tall it grows by peeking over the fence.

Nimmala still has to prove it at higher levels, and Soriano gets a full offseason with Pete Walker. By next summer, one of them will have settled the argument.