BLOOMINGTON, Minn. — Rodney Harrison knows what it's like to be on the wrong side of NFL history. 

Harrison was the man in coverage when David Tyree made the Helmet Catch, the iconic grab that helped the New York Giants upset Harrison's undefeated New England Patriots in Super Bowl XLII.

Now an analyst on NBC's Sunday Night Football, Harrison has some advice for Marcus Williams after the Saints rookie's missed tackle on Stefon Diggs played a central role in the Minneapolis Miracle.

"What he needs to do is he needs to go back and watch tape of the entire year and what he accomplished," Harrison said. "He had a tremendous year as a rookie, and I think if he focuses on the positive, instead of focusing of on the negative. ... He'll bounce back."

Harrison, a four-time All-Pro and a two-time Super Bowl winner, understands the difficulty of the decision Williams had to make in a split-second. 

"In a situation like that, you always want to protect the sideline," Harrison said. "And I just think he was in a situation where he didn't know if he got there too soon, if he wanted to kind of chop block the guy at his knees or break on the ball. It was just a really unfortunate situation."

One play obviously does not define the rookie season Williams put together. 

Williams, one of the key members of the Saints' incredible draft class, racked up 73 tackles, seven pass breakups and intercepted four passes, the most for any New Orleans safety since 2009. 

And if Williams hadn't picked off Case Keenum early in the game, New Orleans wouldn't have had the lead he was trying to protect. 

"If he was a coward, if he wouldn't hit anybody. ... guys would turn their back on him," Harrison said. "The fact that he's not a coward, that he's not afraid to tackle, he just made a mistake. He'll learn from it. ... he'll be a great safety in this league for a long time."

Follow Joel A. Erickson on Twitter, @JoelAErickson.

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