Hyun-Jin Ryu was so locked in he forgot how many outs there were

In the early innings of the Dodgers' 6-0 win over the Braves in Game 1 of the NLDS on Thursday, Hyun-Jin Ryu was dealing. He only allowed one base hit through the first three innings, baffling Atlanta's hitters the first trip through the lineup.
He was so locked-in, in fact, that he mistook the second out of the fourth for the third, and had already begun his walk back to the dugout before he realized it. So, he reacted as you'd expect: laughter.

That's the best medicine, after all ...