Remember David Tyree? Most people hadn't heard his name before he pulled down that dramatic catch in the Super Bowl. Players like him step up in virtually every NFL game. So, we'll take you on a tour of the lesser-known players who make an impact every week. Introducing the NFL Unsung Heroes. -- Sid Saraf
Week 7: Nick Hardwick
The Chargers center stepped up for an offensive line that has been taking a lot of heat this season. San Diego went into Jacksonville and dominated the line of scrimmage as the Bolts moved to 4-3 with the win.
Week 7: Harry Douglas
With the Falcons missing their two starting wide receivers, Douglas stepped up in a big way. He caught seven passes for 149 yards and a touchdown as Atlanta took down Tampa Bay at home.
Week 7: Roy Helu, Jr.
The backup Redskins running back scored three touchdowns as his team won a thrilling shootout against the Bears.
Week 6: Kenbrell Thompkins
Thompkins caught just three passes against the Saints, but the last one of the day was huge. He pulled down a Tom Brady pass in the end zone late in the fourth quarter as the Patriots pulled off a stunning comeback win.
Week 6: Brandon Tate
Tate made an impact on special teams against the Bills, as his 29-yard punt return in overtime set up the game-winning field goal for the Bengals.
Week 6: Joseph Fauria
The rookie tight end -- who was signed as an undrafted free agent -- continued his amazing start to 2013. Fauria caught three touchdown passes as the Lions handled the Browns.
Week 5: Daryl Washington
The Cardinals linebacker returned from a suspension and made an immediate impact. He came up with two sacks, eight tackles and a key interception of Cam Newton that pushed Arizona to a big home win.
Week 5: Nick Foles
The Eagles quarterback came on in relief of injured starter Michael Vick, throwing for 195 yards and a touchdown pass to Brent Celek that sealed the victory.
Week 5: Darius Butler
The Colts defensive back saved the day, picking off a Russell Wilson pass late in the fourth quarter to seal the big win for Indianapolis.
Weeek 4: Danny Woodhead
The little running back scored two touchdowns as the Chargers evened their record at 2-2 with a win over the Cowboys.
Week 4: Kiko Alonso
The Bills' rookie linebacker is having quite a start to his NFL career. He picked off two passes against the Ravens, the second of which sealed the Buffalo win with time running out.
Week 3: Terence Newman
The Bengals defensive back picked up a fumble and returned it for a touchdown against the Packers. The score started a rally the led to a Cincinnati victory.
Week 3: Justin Hunter
The rookie wide receiver made his first NFL catch a memorable. He pulled down a touchdown pass from Jake Locker with just seconds left on the clock as the Titans stole a win from the Chargers.
Week 1: Julius Thomas
Who? Thomas wasn't exactly a household name before the Broncos' season opener, but he made a thunderous statement. He pulled down 2 touchdown catches as Denver rolled to an easy win over the defending champion Ravens.
Week 1: Jermaine Kearse
The Seahawks were trailing in the fourth quarter and in danger of dropping a road game against Carolina, when little-known Kearse sprang to action. His 43-yard touchdown catch pushed Seattle to the lead and an eventual victory. That was pure clutch.
Week 1: Joseph Fauria
The undrafted tight end out of UCLA wasn't a lock to even make Detroit's opening day roster. But he's here and in Week 1 the 6-foot-7 specimen sealed the Lions' victory over the Vikings with a 1-yard TD catch late in the fourth quarter. Nice job, kid. You might just stick in this league.
Week 1: Kyle Arrington
The Patriots barely escaped Buffalo with a win in Week 1, but they might have gone down in defeat if it wasn't for Arrington. The cornerback forced two fumbles on Sunday, both of which led to points for New England. Sometimes it's the little guys who make a huge difference.
Week 1: Jared Cook
Cook rides the line of being unsung, because he did sign a nice free-agent contract with St. Louis in the offseason. However, he wasn't in the national discussion before Sunday. The tight end will be from now on after pulling down two touchdown catches in Week 1. He should have had a third, if it wasn't for a fumble. But his explosiveness in the Rams' passing game is plain for everyone to see. We're going to hear his name a lot in 2012.