Boston-Seattle play

[UMP25]

It was Bruce's crew on that Crede play.

Using your logic, then, a player must always use his non-glove hand to remove the ball, because if he simply brings up his mitt to show the umpire he caught it and the ball pops out, it's a no catch.

Sorry, but if I judge the fielder had secure possession "long enough" to establish a catch and brings his mitt up to show me the ball, I'm ruling a catch.