As football fans, it's easy to go back and look at a player's career to judge just how big of a star the player was during the prime years of their time in the NFL. However, before these players ever made it into the league, they were judged by professional scouts and coaches who had to make the tough choice of taking them in the draft or not, and of course, some future stars never made it onto the draft boards.
It's hard to be a scout, though. After all, some players are just developing when the time comes to enter the league. That means many of the best players go undrafted during one of the most pivotal times of their lives. The best of these players never quit, however, as they fight for a spot on an NFL roster.
Do you know which players went on to have exceptional careers, winning Super Bowls, making Pro Bowls and earning their way into the Hall of Fame despite not being drafted? Here's a quiz where you can find out just that.
If you think you know all of the greatest NFL stars who went undrafted, get started with this quiz and see if you would make a decent NFL scout!
Since joining Denver in 2011, Chris Harris Jr. played in every regular season game except one through the 2017 season. During that span, he recorded 16 interceptions and returned three of them for touchdowns.
Adam Vinatieri is the NFL's all-time leading scorer. Though Vinatieri is still playing, he passed Morten Andersen's record of 2,544 points in 2018.
Dave Krieg spent the largest part of his career with the Seattle Seahawks. He currently holds Seattle's record for career touchdown passes.
2012 was London Fletcher's second to last year in the league. However, it was also one of his best years as he recorded a career-high five interceptions and made his fourth Pro Bowl.
At the height of his career, Arian Foster was one of the top running backs in the league. He twice led the league in rushing touchdowns and led the league in rushing yards once.
Joe Jacoby won three Super Bowls playing for the Washington Redskins. Though he hasn't made the Hall of Fame, Jacoby was selected to the Redskins Ring of Fame.
Rod Smith played college football at Missouri Southern State where he had an outstanding career. Smith was elected to the College Football Hall of Fame in 2009.
Cameron Wake's short career in the CFL displayed the defensive star's talent. In his rookie season, he was named the CFL Rookie of the Year and Defensive Player of the Year.
During their time together, Tom Brady connected with Wes Welker over 100 times per season every year except one. In those seasons with over 100 receptions, Welker also had over 1,000 yards receiving.
Cliff Harris played in five Super Bowls during his time with the Dallas Cowboys. His team walked away with two victories during that span.
Jay Hilgenberg was drafted out of Iowa in 1981. Wearing number 63, he played the center position throughout his NFL career.
James Harrison finished his career playing in a Super Bowl with the New England Patriots. However, the Patriots lost the game to the Philadelphia Eagles.
Donnie Shell was part of a dominant Steelers' defense in the '70s and '80s. Led by the defense, the Steelers won four Super Bowls with Shell on the team.
Nate Newton's football success was marred by his legal troubles after leaving the game. In 2001, he was arrested twice for drug trafficking.
Drew Pearson had his greatest NFL season in 1977 when he led the league in receiving yards. For his play, Pearson was selected to the NFL 1970s All-Decade Team.
Brian Waters played tight end and defensive end in college. When he entered the NFL, the six-time Pro Bowler moved to guard where he remained throughout his career.
Jason Peters went to Super Bowl LII with the Philadelphia Eagles. The Eagles defeated the Patriots to win the first Super Bowl in franchise history.
In 2003, Priest Holmes set the NFL single-season rushing touchdowns record when he scored 27 touchdowns on the ground. The record was broken a few years later by LaDainian Tomlinson.
Tony Romo passed for 7,816 yards and 82 touchdowns while in college at Eastern Illinois. In 2009, Eastern Illinois honored Romo by retiring his number.
Jim Langer played for the Miami Dolphins when they went undefeated during the 1972 season. The year culminated in a Super Bowl victory for the Dolphins over the Washington Redskins.
Jeff Saturday spent most of his career blocking for quarterback Peyton Manning. Together, they won Super Bowl XLI while playing for the Indianapolis Colts.
Antonio Gates helped revolutionize the tight end position. In previous eras, tight ends were primarily used for blocking, but Gates made teams realize that tight ends could be star receivers as well.
John Randle finished his NFL career with 137.5 sacks. In his best season, he led the league in sacks with 15.5.
Kurt Warner was part of a Rams' offense known as "The Greatest Show on Turf." Other key players in the offense were Isaac Bruce, Torry Holt, and Marshall Faulk.
Warren Moon was named the NFL Offensive Player of the Year in 1990. That season, he completed 62% of his passes for 4,689 yards.
Michael Bennett is the brother of Martellus Bennett, a former tight end in the NFL. The two played together for a few seasons at Texas A&M.
Bart Scott spent most of his NFL career playing under coach Rex Ryan. Ryan was the defensive coordinator for the Ravens while Scott was on the team, then he signed Scott to the Jets' roster when he became the head coach.
Jeff Feagles mastered the art of the coffin punt while in the NFL. This style of punt is used to pin offenses inside their 10-yard line, forcing them to march the distance of the field to score.
A Georgia resident, Jessie Tuggle played college football at Valdosta State in south Georgia. He was eventually picked up by the Atlanta Falcons where he spent his entire NFL career.
Sam Mills was a player who only got better with age. In 1996, his second to last year in the NFL, Mills was selected to the First-Team All-Pro for the first time in his career.
Herm Edwards took the head coaching job for the Arizona State Sun Devils at the beginning of the 2018 season. In his first season, he led the Sun Devils to a bowl game after going 7-5 in the regular season.
Dan Reeves played running back for eight seasons in the NFL. In Super Bowl VI, he carried the ball one time for seven yards.
Coy Bacon played during an era when sacks weren't recorded. However, according to some football historians, Bacon would hold the single-season sack record after recording 26 sacks during the 1976 season.
Before the 1969 season, Larry Little was traded from the Chargers to the Dolphins. In his first season with the Dolphins, Little was selected to his first of five Pro Bowls.
Despite a successful career, Emmitt Thomas was left out of the NFL Hall of Fame during the early years of his eligibility. However, he finally made the Hall of Fame in 2008 when he was selected by the Seniors Committee.
Despite going undrafted in 1952, Dick Lane had a historic rookie season. That year, he set the NFL record for interceptions in a season when he pulled in 14.
Willie Wood played for the Packers under the legendary coach Vince Lombardi. Led by quarterback Bart Starr, the team won Super Bowl I and II together.
Joe Perry led the NFL in rushing yards in 1953 and 1954. During the 1953 season, he also led the league in rushing touchdowns.