Royals Sign Aaron Sanchez to Minor League Deal

[Kevin O'Brien]

 

On Tuesday morning, in some unexpected news, Robert Murray of Fansided reported that the Royals signed pitcher Aaron Sanchez on a Minor League deal with an invitation to Spring Training. 

 

Sanchez is a former highly touted arm from the Blue Jays organization who made the All-Star team as a 23-year-old in 2016. That season, he made 30 starts, pitched 192 innings, won 15 games, posted a 3.00 ERA, 3.55 FIP, and accumulated a 3.5 fWAR. After the year, it was thought that Sanchez would be the ace of the Toronto rotation for a long time.

Unfortunately, injuries and ineffectiveness have limited Sanchez's career since that All-Star campaign. 

Since 2017, Sanchez has accumulated a 2.0 fWAR in 79 starts and 367.2 IP. His ERA rose to 4.25 in 2017 and 4.89 in 2018 before ballooning to 5.89 with the Blue Jays and Astros in 2019. After missing all of 2020 due to injury, he had a nice bounce-back campaign with the Giants in 2021, posting a 3.06 ERA in nine appearances and 35.1 IP. However, things regressed back to awful levels in 2022, as he sported an ERA of 6.60 in 15 appearances and 60 IP with the Nationals and Twins.

The 33-year-old righty hasn't pitched at the Major League level since that 2022 season, and he actually did not pitch at all at any level in 2025. In 2024, his last season in the Minors, Sanchez posted a 7.92 ERA and 6.49 FIP in 14 outings and 61.1 IP with the Buffalo Bisons, the Blue Jays' Triple-A team. Not only was Sanchez hit hard that season (19.4% HR/FB rate), but he also struggled with command (1.05 K/BB ratio) and didn't show great stuff either, based on TJ Stats metrics. 

Sanchez's groundball rate was decent at 44.3% with the Bisons, and he also limited productive contact, posting a .336 xwOBACON. That said, he sported below-average stuff with a 93 TJ Stuff+ mark overall, and his zone rate (44.4%), chase% (24.3%), and whiff% (23%) were subpar as well. Thus, when he made mistakes, hitters made him pay dearly (illustrated by the HR/FB rate). With Buffalo, his curveball, which he threw 20.3% of the time, was his best offering, as it sported a 100 TJ Stuff+, 33.6% chase%, 35.7% whiff%, and .292 xwOBACON. 

Below is a breakdown of Sanchez's curveball against left and right-handed hitters via TJ Stats. It's possible that pitching coaches Brian Sweeney and Mike McFerran think he could improve his repertoire this spring, with the curveball as his foundational offering (it generated a 35.1% CSW against right-handed hitters). 

After taking a year off, Sanchez returned to baseball by pitching with Toros del Este of the Dominican Winter League (LiDOM) this winter. The former All-Star thrived in his return to the mound in LiDOM, posting a 1.55 ERA, 0.95 WHIP, and 3.78 K/BB ratio in eight starts and 46.1 IP. His strong performance earned him top pitching honors in Winter League play. 

 

 

The Royals likely picked up Sanchez due to his strong Winter League performance, hoping that he can show something on the mound again, whether at the Minor or Major League level. It's unlikely that Sanchez will make the Royals rotation, as it is incredibly deep right now with Cole Ragans, Seth Lugo, Michael Wacha, Kris Bubic, Noah Cameron, Ryan Bergert, Luinder Avila, and Stephen Kolek all vying for spots this spring.

 

That said, the Royals likely want pitching depth, just in case their rotation gets hit by injury again like it did a season ago. Furthermore, Sanchez could generate some trade interest for a pitching-desperate team, especially if they are hit by injury in Spring Training play. Such a situation could net the Royals a low-level prospect, cash, or a bench player who could provide needed depth in the system. 

Photo Credit: Troy Taormina-Imagn Images

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