By Dan Duggan | NJ Advance Media for NJ.com

EAST RUTHERFORD — These are the performances that get people fired.

The Giants were embarrassed in a 51-17 loss to the Rams on Sunday at MetLife Stadium.

The Giants, who dropped to 1-7, looked like a team in disarray entering the game. Things only got worse once the game kicked off.

Coach Ben McAdoo suspended Janoris Jenkins on Tuesday after the All-Pro cornerback failed to report for the team's first post-bye practice on Monday. It was the second time in three weeks that McAdoo had suspended a cornerback, as Dominique Rodgers-Cromartie got a one-game ban in Week 6.

The Giants rallied after Rodgers-Cromartie's suspension to win their lone game of the season, a 23-10 upset of the Broncos. The team showed nowhere near that much fight on Sunday against a 6-2 Rams that team that had traveled 3,000 miles for the 1 p.m. kickoff in front of an announced crowd of 76,877 that was reduced to a few hundred by the end.

The seats of McAdoo and general manager Jerry Reese will only get hotter after Sunday's disgraceful performance. Here are nine takeaways from the game:

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Robert Deutsch | USA TODAY Sports

Eli off the mark

Giants quarterback Eli Manning had a miserable performance. The game could have been different if Manning connected with a few open receivers, but he over-threw potential touchdown passes to Sterling Shepard and Tavarres King in the first half.

Manning threw a brutal interception to Rams cornerback Trumaine Johnson late in the first half. Johnson clearly read Roger Lewis' slant route and beat the receiver to the spot.

Manning also lost a fumble on the opening possession of the game when defensive tackle Aaron Donald beat right guard D.J. Fluker for a strip-sack. Manning has five fumbles in the past four games, losing three of them.

Manning completed 20-of-36 passes for 220 yards, two touchdowns and one interception. He was replaced by Geno Smith with 2:53 remaining. Rookie quarterback Davis Webb was inactive on Sunday.

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Fire. Everyone. pic.twitter.com/tXictaw7ei — National Caucasian Distributor of Cold Takes (@EthanGSN) November 5, 2017

Third-and-gone

The play that encapsulated the embarrassing effort came in the second quarter. The Rams had third-and-33 at their own 48-yard line when they called a wide receiver screen to Robert Woods.

It was the type of play that is called to try to help a team's field position for a punt. But Woods somehow weaved through the Giants' defense without getting touched on a 52-yard touchdown to give the Rams a 17-7 lead.

Cornerback Ross Cockrell and linebacker Calvin Munson got blown up by blockers, safety Landon Collins took a bad angle and cornerback Eli Apple elected to stay out of the fray as Woods sprinted past him into the end zone.

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Practice doesn't make perfect

McAdoo made the meaningless declaration this week that the Giants are a better practice team this season than during their 11-5 campaign last year. Signs of that practice performance translating to the game field continue to be missing.

The Giants had three turnovers on Sunday. In addition to Manning's givewaways, rookie running back Wayne Gallman coughed up the ball at midfield with the Giants trailing 10-7 early in the second quarter.

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Collins torched

Safety Landon Collins' hasn't performed close to All-Pro level this season. Sunday was Collins' worst performance in a long time.

Collins was torched by Sammy Watkins for a 67-yard touchdown midway through the second quarter. Collins was also in the neighborhood when tight end Gerald Everett got free for a 44-yard gain in the first quarter, although that could have been the result of a busted coverage by cornerback Eli Apple.

Collins also was flagged for an unnecessary penalty for slamming a Rams receiver to the ground away from the play.

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Worth the price

The Giants saw firsthand what they missed out on by not pursuing left tackle Andrew Whitworth in free agency. Rams quarterback Jared Goff had all day to throw with Whitworth protecting his blindside.

Running back Todd Gurley had a 36-yard run on the Rams' first play, as Whitworth sealed rookie defensive end Avery Moss outside. The Giants flipped Jason Pierre-Paul to Whitworth's side after that play and the veteran defensive end made no impact.

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Another tight end

The Rams' first touchdown came on an 8-yard pass from Jared Goff to tight end Tyler Bigbee. It was the ninth touchdown the Giants have surrendered to an opposing tight end in eight games this season. The Giants have allowed a touchdown to a tight end in an NFL record nine straight games dating back to last season.

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Nothing special

All three phases did their part in the debacle. Aldrlck Rosas missed a 45-yard field goal before halftime. The rookie is 8-for-12 this season with a miss in each of the past three games. The Rams also blocked a punt in the third quarter. Rams special teams coach John Fassel, who is the son of former Giants coach Jim Fassel, had to savor the performance.

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Draft regrets

Adding insult to injury, Todd Gurley had 16 carries for 59 yards and two touchdowns, as well as two catches for 45 yards. The Giants, of course, could have had Gurley, but they instead took left tackle Ereck Flowers with the ninth pick in the 2015 draft. Gurley, who has an NFL-high 10 touchdowns, went one pick later to the Rams. Flowers has struggled in his first three seasons and he had a rough performance on Sunday.

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Engram showing fight

Rookie tight end Evan Engram was one of the few Giants to show fight on Sunday. Engram finished with four catches for 70 yards, including a nice 10-yard touchdown grab on a jump ball in the fourth quarter.

Engram ran tough after the catch on a 21-yard gain in the second quarter. He also had a 26-yard catch on a seam route, which has been surprisingly absent from the playbook this season. Engram failed to hang onto a few catchable passes, but overall, it was an encouraging performance from one of the team's few bright spots.

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Dan Duggan may be reached at dduggan@njadvancemedia.com. Follow him on Twitter @DDuggan21. Find our Giants coverage on Facebook.