Erik Howard’s memories of the play remain vivid more than two decades later.

The former Giant will never forget fighting through blockers to knock the ball out of Roger Craig’s hands, forcing the fumble that helped lead New York to its second Super Bowl title and ended the San Francisco 49ers’ quest for a third straight championship.

That play from the NFC championship game on Jan. 20, 1991, is among the most famous between the teams and is one of many being recalled leading into Sunday’s conference title game.

But it is far from the only postseason moment the teams share. The Giants and 49ers met six times in the playoffs between the 1981 and ’94 seasons with the victor going on to win the Super Bowl in four of those cases.

The rivalry featured Hall of Fame players like Joe Montana, Jerry Rice and Ronnie Lott on San Francisco, and Lawrence Taylor and Harry Carson for the Giants.

There were great plays and memorable moments through the years, but the most famous came in the only previous conference championship game between these teams following the 1990 season.

“You were playing legends: Montana and Jerry Rice and those guys,” Howard said. “That team was always at the top of the league in the standings. We knew those would be big, exciting games. Those were the games that you live for. You carry them with you forever.”

The 49ers were shooting for a third straight Super Bowl title that season, with the Giants providing the stiffest obstacle. Both teams started the year 10-0 before losing the week before a highly anticipated Monday night matchup. The 49ers won that game 7-3 at Candlestick Park, earning them home-field advantage for the rematch seven weeks later.

San Francisco led that game 13-9 early in the fourth quarter before Leonard Marshall knocked out Montana with a crushing hit from behind. Gary Reasons then had a 30-yard run on a fake punt to set up Matt Bahr’s fourth field goal to make it 13- 12.

The 49ers just needed to run out the clock to seal the win. But on a first- and- 10 from the Giants 40 with less than 3 minutes to go, Craig ran up the middle and Howard shed his blockers and got his helmet on the ball. It popped loose and Taylor recovered at the New York 43 with 2:36 to go.

“The thing I remember the most was the silence was deafening in the crowd,” Howard said. “It was so loud in there and the fans were so excited. The Super Bowl was in their grasp. Then to all of a sudden have a turnover at that stage of the game and it’s over. It’s such a vivid memory.”

Seven plays later, Bahr kicked a 43-yard field goal as time expired, sending the Giants to a Super Bowl they won 20-19 over Buffalo.

“ I got over that on that same day,” Craig said this week. “It was no big deal. It was just a loss that we had. It wasn’t meant to be for us to go to the championship that year. The defense made a good play on the ball. They had a perfect hit. It doesn’t really change your life. I’m too positive a person to let something like that dictate your life.”

Steve Young, who replaced Montana that game, said there was talk about whether they should hand the ball to Craig or run a bootleg. They went with the handoff.

“Then in the end, we obviously called the running play,” he said. “And forever more, whoever won the discussion, or what to do, was on the hook.”

Montana never started another game for the 49ers again, missing most of the next two seasons with injuries and then leaving to finish his career in Kansas City.

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