What happened: Diamondbacks reliever Justin Martinez tossed an immaculate inning, striking out the side on nine pitches. The flawless frame featured nine consecutive strikes to record three outs.

Why it matters: The rare pitching achievement underscores his overpowering arsenal, which features a four-seam fastball reaching 102.6 mph. The feat requires zero margin for error and historically occurs less frequently than a no-hitter.

What to watch: The dominant outing fortifies the back end of the bullpen for the final weeks of the regular season.