[greymule]

As he came off the base, the ball slipped deeper into the glove = not a catch (?)

I can see ruling a bobble if the ball is rolling around in an open glove or is otherwise unsecured, or (obviously) if the fielder has to make some sort of move with his hand or arm to secure a ball loose in the glove. But calling a bobble when the ball simply moves down from the top of a closed glove toward the palm of a closed glove—that's a tough one.

Can you see Joyce explaining, "The ball was in the glove before the runner reached 1B, but just after the runner crossed the bag, the ball slid down toward the palm of the glove"?

Number of Major League perfect games from May 1, 1922, to October 7, 1956: zero.

Number in the past month: two (plus one).

Joyce's call was actually a rather routine bad call. We've all seen far worse, even in the World Series, that are now forgotten. It was the element of the possible perfect game that made it stand out.