Royals' Matt Quatraro ejected, 2 pitches before Red Sox's walk-off slam

BOSTON -- Kansas City Royals manager Matt Quatraro was ejected on Monday night for arguing a checked-swing call on a 3-2 pitch with two outs in the bottom of the ninth inning against the Boston Red Sox.

It was an important play, too: Instead of an inning-ending strikeout of Luis Urias, the bases were loaded for Pablo Reyes, who hit a walk-off grand slam to give Boston a 6-2 victory.

"Yeah, I can't think of being much more frustrated than that," Quatraro said. "I mean, he gets the strikeout to move to extra innings -- and then he didn't. I don't really have much else to say about that."

The Royals rallied from a 2-0 deficit to tie the game in the seventh. It was still 2-2 when Rafael Devers…