This story was excerpted from Mart¨ªn Gallegos¡¯ A¡¯s Beat newsletter. To read the full newsletter, click here. And subscribe to get it regularly in your inbox.

OAKLAND -- Following Mason Miller¡¯s two scoreless innings in the first game of a doubleheader against the Rangers on May 8, NBC Sports California play-by-play announcer Chris Caray experimented with a nickname for the A¡¯s flamethrowing rookie closer.

¡°The Reaper!¡± Caray exclaimed. ¡°Continues to haunt Major League hitting!¡±

On Tuesday, when Miller sealed his ninth save of the year in a 5-4 series-opening win over the Rockies at the Coliseum by firing a 103 mph fastball past Ezequiel Tovar, Caray again busted out the moniker.

¡°The Reaper!¡± said Caray. ¡°Freezes the Rockies in Game 1!¡±

The Reaper appears to have stuck. The nickname drew rave reviews on social media. Most importantly, Miller himself is a fan.

¡°I like it,¡± Miller said. ¡°I actually had a buddy in college whose nickname was ¡®The Reaper¡¯ also. But his was because he worked so slow.¡±

There is nothing slow about Miller. Entering Saturday, his 100.9 mph average fastball velocity ranks highest in the Majors. His 22 strikeouts on 100-plus mph pitches are the most of any reliever.

Before his career-high scoreless streak was snapped on Thursday at 19 1/3 innings, Miller became the first reliever in the Modern Era (since 1901) with a 15-game stretch of no runs allowed, 40-plus strikeouts and fewer than five walks. He was just the 30th pitcher in A¡¯s franchise history with at least 15 consecutive scoreless outings.

It¡¯s the type of dominance that deserves to be recognized, and why Caray was so adamant about finding a nickname for Miller.

¡°He¡¯s quite possibly the best pitcher in the game right now,¡± Caray said. ¡°He¡¯s just got incredible stuff, and his story is great, too.¡±

Caray workshopped a few different names on his own that could match Miller¡¯s calm yet imposing demeanor on the mound before settling on ¡®The Reaper.¡¯ His TV broadcast partner, former A¡¯s pitcher Dallas Braden, has been calling Miller ¡®The Soul Snatcher¡¯ throughout the season.

¡°We know him as a person that he¡¯s not high energy or this monster,¡± Caray said of Miller. ¡°I was thinking. Phantom doesn¡¯t sound good. But I wanted something where you know he¡¯s there. And when he comes, it¡¯s like you¡¯re seeing a ghost. ¡®The Reaper¡¯ can be an apparition. It can be a person taking a soul.¡±

Given the new name, Miller has already received plenty of feedback on social media from fans suggesting he switch his walkout song to ¡°Don¡¯t Fear the Reaper¡± by Blue Oyster Cult.

¡°All the people that message me with a song I should use is usually that,¡± Miller said. ¡°Wild Thing, or the Undertaker theme.¡±

For now, Miller plans to stick with ¡°Burn it to the Ground¡± by Nickelback.

As for his preference between Caray¡¯s ¡®The Reaper¡¯ or Braden¡¯s ¡®The Soul Snatcher,¡¯ Miller is open to both.

¡°Whatever is flowing off the tongue,¡± he said.