Our last line of defence put on a superb display of goalkeeping and a clean sheet was only denied to him by a Ruud van Nistelrooy penalty following a Gary Doherty foul on Ole Solskjaer.
"I don't know," said Kasey on the penalty theory. "It was a tough day, we tried to attack as much as we could and left ourselves a little bit open. Not too bad, I was able to come up with some saves and it was just unfortunate that having got away with one penalty decision - at Old Trafford you're not going to get away with two of them.
"I know Doc got to the ball first time around, the question I had was did he get the guy first? I think he definitely got him on the first one and with the second he was always going to give it."
So now if Kasey starts saving penalties...
"Tell me about it," he laughs. "It would be nice, I was close at Fulham - that one cheesed me off. This one was a good finish."
At least neither of the penalties Kasey has faced this season have been in the fashion of Lauren's for Arsenal towards the end of last season.
"No, a little dinker up the middle! I'm still feeling the pain from that, stretching so hard to get my foot back there - I'm still feeling something from it I'm sure of that."
One save in particular on Saturday drew gasps of amazement from the crowd - when Kasey's feet denied van Nistelrooy an almost certain goal.
"I just turned and drew a foot in the direction of the ball and it just came off of it. Sometimes these sort of things come right, on others he'll just turn and put it in the other corner.
"It was a shame because it would have been nice to get a point out of that game. It was tough, it was a good day and we battled as hard as we could.
"It's obviously showing that we're definitely closing the gap, no doubt about it."
Kasey Keller turned slightly modest when it was suggested that it was always going to take a penalty to beat him at Old Trafford on Saturday.