NEW YORK -- After becoming the third-youngest player in major league history to produce a pair of homers in a World Series game, rookie Michael Conforto stood to be the hero of Game 4.

Instead, the New York Mets squandered a lead with five outs to play, and Conforto's contribution became a footnote in a 5-3 loss to the Kansas City Royals on Saturday night.

"It's a bit conflicting," Conforto said. "You find comfort in knowing that we've got another shot tomorrow. I get another chance to go out there and play. It's a tough loss, definitely, but there's no quit in this team. As long as we have an out, we're going to keep fighting, so we're excited to come out tomorrow."

Conforto became the second player in franchise history to record a two-homer game in the World Series. He joined Gary Carter, who homered twice in Game 4 of the 1986 World Series against the Boston Red Sox. The Mets climbed out of an 0-2 deficit in that series.

At 22 years, 244 days old, Conforto became the third-youngest player in World Series history with a two-homer game. Only Andruw Jones (19 years, 180 days) in 1996 and Tony Kubek (21 years, 358 days) in 1957 were younger.

Afterward, Conforto expressed gratitude for the staff's continuing to show faith in him. After homering against Zack Greinke in his first career postseason at-bat, Conforto went hitless in 20 straight at-bats until a run-scoring infield single Friday.

Conforto's first homer Saturday came against Chris Young and gave the Mets a 1-0 lead in the third. His second solo shot came in the fifth against left-handed reliever Danny Duffy and provided a 3-1 advantage.

"I definitely felt good at the plate," Conforto said in reflecting on his 0-for-20 drought. "I had some bad at-bats mixed in there. It seemed like every game, I hit the ball hard, and it didn't happen to fall in. Today, it felt good to help the team and put some runs on the board."

As for manager Terry Collins' sticking with him, Conforto added: "He's shown confidence all year, since I came up. That does a lot for me."

The Mets had plenty of rookie contributions the past two days. Noah Syndergaard earned the win in Game 3. Steven Matz took a credible effort into the sixth inning Saturday and departed in position to earn his first career postseason win.

"You kind of forget about where you came from," said Conforto, who began the season at Class A St. Lucie. "You've got to act the part. You've got to be a big leaguer. You've got to be a veteran guy in these big games. You kind of forget about all that during the games. You just do what you can to help the team win."