The year 2020 has been unusual, to say the least. And one of the interesting novelties of the 2020 Major League season has been the debut of uniform numbers never worn before in a regular-season game.

Largely because of the 60-man player pools for this abbreviated season, there are enough players waiting in the wings that we've already seen a few "Spring Training number" debuts, and now the uni-number journey is complete.

? Where do jersey numbers come from?

Yankees right-hander Miguel Yajure?made his Major League debut Monday night out of the bullpen against the Rays with No. 89 on his back. That means that every number, from 0 to 99, has now been worn in a regular-season Major League game, according to baseball-reference.com. There were three numbers yet to be worn before the start of the season, but Cardinals pitchers Jesus Cruz?and G¨¦nesis Cabrera debuted Nos. 86 and 92, respectively, in August, leaving only Yajure to dust off No. 89.