Janoris Jenkins said he’s looking forward to the Giants’ home opener at MetLife Stadium on Sunday. He’s eager to experience a supportive, vocal crowd that vigorously supports the home team.

“The crowd is going to be alive and a lot of fun,” Jenkins said Wednesday. “I’m looking forward to getting after it.”

That isn’t just talk, either. Consider Jenkins played his previous four seasons in St. Louis, where the Rams had one foot out the door and their frustrated fans were ready to slam the door behind them. The team eventually moved to Los Angeles and Jenkins signed a free-agent contract with the Giants, and there won’t be any echoes bouncing around an empty stadium.

“I’ve heard the fans are loud slash crazy,” he said. “On the road I’ve seen that, but in St. Louis it was kind of different. I’m looking forward to it.”

The Giants cornerback is also hoping the noise from the home crowd will help make things difficult for the Saints’ high-powered offense, featuring quarterback Drew Brees. The future Hall of Fame quarterback shredded the Giants for 505 passing yards and tied an NFL record with seven touchdown passes in a 52-49 win by the Saints last year in New Orleans.

Jenkins watched some of the game on television in St. Louis and didn’t appreciate the shootout.

“Being a defensive player, I would have preferred it to be 7-6,” he said.

It’s not a stretch to believe Jenkins is with the Giants because of that game, where it became clear the secondary had to be upgraded. It took a five-year, $62.5 million contract to get him from the Rams, who had offered $45 million for the same term.

It was viewed in some circles as a high-risk move by the Giants, but the acquisition has already paid dividends after one game. Jenkins shadowed Dez Bryant for much of the game Sunday, limiting the talented Cowboys wide receiver to just one catch for 8 yards in the Giants’ 20-19 victory in Arlington, Texas.

A humble Jenkins wasn’t taking all of the credit for his shutdown performance.

“I did what I had to do against Dez,” he said. “My D-line did what they had to do along with my linebackers. We did what we had to do as a team. It’s on to the next game.”

The next game is against Brees, who has way more experience than Cowboys rookie quarterback Dak Prescott, though that doesn’t seem to concern Jenkins. He actually used the word “simple” to describe what he expects from the Saints quarterback.

“When you watch film on Brees, it’s simple,” he said. “He likes the play-action pass, take deep shots and work the hashes.”

The Giants allowed 227 passing yards to the Cowboys, the first test of a secondary that also has new faces in rookie safety Darian Thompson, veteran Leon Hall and safety Nat Berhe, who missed all of 2015 with a calf injury. The Saints with Brees figure to be a tougher test for the new-look secondary.

“When you play against a guy like this, a guy that likes to throw it around at all times, you can find out fast about your team,” Jenkins said. “We’ll continue to improve. I feel we have guys who can match up all around the board with anybody as long as we play within the system and within the scheme.”

Brees threw for 423 yards and four touchdowns in the Saints’ 35-34 loss to the Raiders last week with Willie Snead IV catching nine passes for 172 yards and a touchdown, while Brandin Cooks had six receptions for 143 yards and two scores.

Jenkins said he’s “motivated” to make sure there’s no shootout on Sunday.

“Bringing me in, I feel like I’m going to try to give that extra boost on the back end and tell everybody to compete first through the fourth quarter,” he said.

He’ll get an extra boost from the home crowd as well.