Overview

• Seattle overturned an eighth‑inning groundout after video showed Royals second baseman Michael Massey with a heel on the outfield grass, awarding Dominic Canzone first base.
• Two batters later, pinch‑runner Victor Robles scored on J. P. Crawford’s double off Daniel Lynch IV to extend the lead that held in a 2-0 final.
• The review prompted Royals manager Matt Quatraro to lift starter Stephen Kolek after 7 1/3 strong innings with a runner on in a one‑run game.
• Under MLB’s updated rule, all infielders must be on the infield dirt when the pitcher is on the rubber, and a proven violation lets the offense take a free base if the first fielder to touch the ball is in violation.
• Mariners replay coordinator Andy Bissell said he had noticed Massey flirting with the grass earlier and prepped the bench to challenge, while Massey acknowledged the rule and expressed frustration over the narrow margin.