NEW YORK (AP) Kansas City right fielder Alex Rios gifted the New York Mets a run in Game 4 of the World Series when he appeared to lose track of how many outs there were in the third inning.

Michael Conforto's leadoff home run in the third against Chris Young put the Mets ahead Saturday night. Wilmer Flores singled, ending an 0-for-10 Series start, advanced on a wild pitch and was sacrificed to third by Mets pitcher Steven Matz.

Curtis Granderson hit a 254-foot fly ball to right. Rios caught it and took a casual step toward Kansas City's dugout, apparently thinking it was the final out of the inning. In the middle of his second step, he threw to the plate, but not in time to get Flores, who came across the plate without a slide.

More from FoxSports

Kansas City asked umpires to check whether Flores left third base early. After a video review of 2 minutes, 22 seconds, the safe call on the field was allowed to stand.