March 18, 2022
ANALYSIS
Aro has spent most of the last two seasons playing in the Mexican League and Dominican Winter League. The right-hander's last stateside experience was in the Atlanta organization in 2019, when he posted a 3.53 ERA and 40:9 K:BB across 63.2 innings between the Double-A and Triple-A levels. Aro threw 11 combined major-league frames for Boston and Seattle in 2015 and 2016, allowing eight earned runs and posting an 8:5 K:BB.