Red Sox

McAdam: More emotion, please, from baseball stars like Mookie Betts

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(Billie Weiss/Boston Red Sox/Getty Images)

The at-bat, in and of itself, was spectacular: a nearly seven-and-a-half minute war of attrition, a study in determination, with Mookie Betts locked into an epic battle with Toronto Blue Jays starter J.A. Happ.

Eventually, after seven foul balls, a pitch in the dirt and a near foul-out flubbed by first baseman Justin Smoak, Betts won the confrontation, connecting for his fourth career grand slam, a moment that threatened to detonate a jam-packed Fenway Park.

But what really made Thursday's fourth-inning slam by Betts so special was what followed: a rare show of emotion by a player who's ordinarily far more measured.