In the visitor's clubhouse at Miller Park, the Rockies were watching as well. Right fielder Michael Cuddyer looked on with particular interest, being Humber's former teammate.
"It's unbelievable," Cuddyer said. "What's even more amazing is the White Sox have 18 no-hitters. It's incredible."
Cuddyer played with Humber briefly during the 2008-09 seasons, when Humber pitched 20 2/3 innings in 13 relief appearances for the Twins.
Did Cuddyer ever see perfect-game type stuff out of Humber?
"Well, perfect games, obviously you've got to have good stuff, but a lot of things also have to go your way," Cuddyer said, "So I think [Saturday] was his day. I didn't see the whole game, but it was definitely his day. That's for sure."
While he's never been involved personally in a perfect game, Cuddyer was in right field for the Twins on May 3 last year, when Francisco Liriano no-hit the White Sox.
Cuddyer reflected on what it's like being a part of a game like that.
"A lot of excitement," Cuddyer said. "During that ninth inning, you're more nervous as a defensive player than the pitcher is, especially in a perfect game. Because if you mess it up, then you messed it up for him. Not you or for the team. It's nerve-wracking."