Astros Sign Brandon Walter To Minor League Deal

The Astros have signed left-hander Brandon Walter to a minor league deal, according to his transactions tracker at MLB.com. The lefty was released by the Red Sox earlier this month, freeing him up to sign this deal.

Walter, 27, was a 26th-round selection of the Sox in the 2019 draft. He made a brief professional debut at the Rookie ball level that year, but the minor leagues were then canceled in 2020 by the pandemic. In the years after that, he elevated his prospect stock with some encouraging results.

In 2021, he tossed 89 1/3 innings across the Single-A and High-A levels, allowing 2.92 earned runs per nine. He struck out 36.3% of batters faced while only giving out walks at a 5.5% clip and also got grounders on more than half of the balls in play he allowed. Baseball America ranked him #11 in Boston’s system going into 2022, noting that he spent the pandemic shutdown year overhauling his arsenal.

In 2022, he was bumped up to Double-A and made nine starts there before getting moved to Triple-A. A bulging cervical disk ended his season in June, after just two starts at the top minor league level. Nonetheless, he finished the year with a solid 3.59 ERA in 57 2/3 innings in his 11 starts over those two levels. He struck out 32.2% of batters faced, gave out walks just 3% of the time and continued to get lots of grounders.

In November of 2022, the Sox added him to their roster to keep him out of the Rule 5 draft, then his results weren’t quite as impressive in 2023. He tossed 23 major league innings with a 6.26 ERA in that small sample, as well as a 15.1% strikeout rate and 6.6% walk rate. He also added another 94 Triple-A frames with a 4.60 ERA, 21.3% strikeout rate, 8.5% walk rate and 49.5% ground ball rate.

Here in 2024, he hasn’t yet pitched in an official game. He landed on the minor league injured list to start the year with a strained left rotator cuff, per Chris Cotillo of MassLive on X. The Sox needed a 40-man roster spot when acquiring righty Lucas Sims at the deadline and designated Walter for assignment. Injured players can’t be placed on outright waivers, so the Sox essentially had no choice but to release him.

At this point, it’s not publicly known what Walter’s health status is. Even if his shoulder has healed and he’s ready to take the mound again shortly, he’ll presumably need some ramp-up time in order to get back into game shape. That might make him more of a long-term play for Houston as opposed to immediate non-roster depth. But Walter has posted some intriguing numbers in recent years when healthy, so it’s understandable why they would be interested in bringing him aboard.

If he eventually gets his roster spot back, he will still have one option year remaining after this one, and there would be an easy case for a fourth option to be granted on account of him missing most or maybe all of 2024. He also has less than a year of service time, meaning he can be controlled for many years into the future.